Arrma UPGRADES - Hardened Steel Input Gear! ALERT V4 Owners!

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THIS UPGRADE IS ABSOLUTELY HUGE! THE SPIRAL IMPUT GEAR IS ONE OF THE MOST COMMON WEAR AND BREAK PARTS IN ARRMA RC'S, AND IT'S A MAJOR PAIN TO DIG INTO. THIS UPGRADE TO HARDENED STEEL IS GAME CHANGING! THX FOR WATCHING.
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[@EastTactics]

Whats up everyone! I decided to pin this comment to answer some frequently asked Questions. You can just buy the updated main spiral input gear and install this in (in the classic way) into your V4. (Be sure to use red locktite on the grub screw) You can fit the V4 outdrive cup over the new input gear and your good to go. Its your option if you want to pick up the V5 outdrive cup to pair with then upgraded Spiral input gear (note, it (the outdrive cup) was also built with upgraded engineering over the classic V4 outdrive cups. Now.. it is also optional if you want to incorporate the SafeD plastic sleeve over the V5 outdrive (if you choose to also pick that up). Lastly... you do not need to change anything regarding your differentials, they are 100% computable with the new (v5) main spiral input gear. ~East Tactics

[@thatmarred_mustang]

HI!!! @east tactics I just wanted to let you know that I stripped my input year and ended up purchasing the V5 gear. When I called horizon about it their support team said the two are completely interchangeable. I just put it in and even though I haven't run it yet everything is looking to have meshed up pretty well!!

[@EastTactics]

@@thatmarred_mustang Nice... and now you’re rocking the stronger version.💪😎

[@l.a.rodriguez9745]

Sorry, I just put gp4 main imput gear in v4 diffs and dont work, the diff get stucked

[@2XRC]

thanks for discovering the secret sauce!! truly appreciate all that you share with the 6s community!!🙏💪🤟

[@EastTactics]

Thanks Randy!

[@Wotup72]

This is exactly wot the RC community needs more of. Thank you.

[@EastTactics]

Appreciate that Chris, thanks

[@cwatson42785]

I really appreciate all your tips and info you provide to us. Just wanted to say it doesn't go unnoticed! Thanks brotha

[@EastTactics]

Thanks Chris 😎💪

[@HolyCannolis]

Epic share…digging deep ✌️

[@lexusant64]

Ive gone through 4 of the old style ones, thanks so much, well found

[@EastTactics]

Thx for watching👍

[@AdrenalineAshRC]

Awesome discovery bro 😎 never knew that 👍

[@mr.davidson3314]

Love the info thanks bud. I’m learning if any trash you throwing out let me know I can use it I’m not too proud to take someone’s trash for help on mine.

[@mikehawk7469]

Good knowledge bro

[@EastTactics]

Thanks Mike, appreciate you watching.💪😎

[@NepDouble07]

I've always had problems with the ring gears in my v4 outcast, my input gear hasn't been changes once. But it's good to know about this, even though I plan on upgrading to exb differentials anyways.

[@EastTactics]

Yeah… Hopefully they release a hardened steel ring gear for the V4/V5, Not sure why they didn’t create one when they launched the v5.

[@jaygod6140]

Technically they don't say it's hardened steel they say hard wearing steel anyway I'm quite certain that all their drive gears are hardened but you should get a Rockwell hardness tester to really put them to the test

[@georgepace1145]

Hi mate. Thanks for I'll try them out sometime. It's always best to get hardened differentials. I'll wait for third party manufacturers to get involved with making EXB differentials because way to meany problems still. Until then I'll use harden BLX parts. The pion gear I'll get a couple thanks mate. Great information great video as always.

[@EastTactics]

Thanks George, appreciate the comment.😎👍

[@aFewBitsShort]

I stripped the v4 input gear and ring gear on my first bash! They definitely need to fix that. The replacement parts went in with extra washers and no issues since.

[@EastTactics]

Yes… Those shims make a huge difference. Thanks for watching, and commenting.😎👍

[@christopherbooher9176]

Great video on your discovery. Arrma is addressing the product improvement by making the v5, but product management isn’t keeping up with changes by cross referencing on all aspects of the website.

[@EastTactics]

That’s good to hear, I’m just glad I was able to get the word out. The real question is, Do we have any idea if they’re going to make a hardened steel differential ring/crown gear for the V5? Which will also be a massive upgrade for the V4

[@rcsendandblast1579]

SWEEEeEeEet I have a v5 diff. coming. ❤️👊😀 I never knew 🥳

[@rccircus7271]

Hey East - i did wonder about the exb parts were interchangable with the v4. I knew that the gp4 spurs were a mismatch but DIDNT know about the hardened pinion. Ive literally just ordered some. Well done Sherlock ☺

[@EastTactics]

Thanks brother! 🕵️

[@customftr4069]

What you referred to as grain is tool marks from machining before they use the hob to cut the teeth.

[@EastTactics]

Interesting 🤔, thanks for clarifying. And thx for watching!

[@customftr4069]

@@EastTactics np. Bet ya can guess what my day job is. Not with rc's though.

[@EastTactics]

Lol... ya Metal nerds RULE!!

[@customftr4069]

@@EastTactics lol. I wouldn't go that far. Thanks for the content.

[@MuscleAKAOzzy]

I have a friend online who has swapped out for 2 exb lsd diffs + input gears and has a complete new driving experience

[@EastTactics]

Nice!!

[@MuscleAKAOzzy]

@@EastTactics my bad he has the 2 non lsd diffs which are stronger than v4 and v5 diffs

[@aFewBitsShort]

@@MuscleAKAOzzy which ones?

[@HardcoreRC]

Very interesting, good find 👍 and yet more shady business from Horizon 😥

[@safecracker9884]

Thank you for this 🙏 I just ordered 2 and also a new complete dif as I stripped mine at the beach i was running 30k in the rear but believe thats a bit to much for my needs so going back to the 10k with the new hardened input gear hoping for better results. My question i have for you is when I install the new dif and input gear I dont have any grease the only thing I could find to possibly use in my house is Vaseline/petroleum jelly? Or i could make some bacon 🥓 and try that grease once it dries up 🤣 idk thoughts?

[@EastTactics]

I’ve been really happy with running 20 K differential fluid in the rear. (80k front) As far as picking up the hardened steel input gears. That’s definitely going to help. I would also make 100% sure that your mesh is set correctly between the spiral input gear and the internal differential gear. Every vehicle is actually a little bit different. And they do not come from the factory with the ideal mesh (most the time). The rule of thumb for perfect mash is the tighter the gears are together the less likely are going to strip them. However it does need to be a hairs breath of gap reminiscent of a very small tick like feel when jiggling it. There is a shim you can pick up that I will link at the bottom of this message that’s good to have on hand as it’s also a good shim for cleaning up slop on your four CV shafts. (Vid linked below for that) Lastly as far as internal DIFf lube/grease this is the stuff that I use, it’s not too expensive and it will last you forever. Fetching links now… Two thickness (shims) amzn.to/3zEB8E0 amzn.to/3vIle8o Slop video kzbin.info/www/bejne/fXWUYaFpr8t0rs0 Lube amzn.to/3qb2Rb4 Or amzn.to/2SFncJt The marine stuff is a little bit more water resistant. But both are great lubes

[@feet2696]

All cups should be metal as well..n if u put belted street tires on..makes diff damage happen faster ..i put 20mill wit 50k in my diffs..

[@toffat6]

Need you to pick up a big rock and go into this depth super interesting thank you

[@EastTactics]

Ive seriously considered picking up a new RC...its funny how im only a one man show. Course i do feel like the teachings/ideas I share on the V4 Kraton span over alot of different RC’s (especially in the Arrma ecosystem). That all said, instead of picking a new rig, I decided to instead pickup the NEW DJI FPV drone. both to experience the hobby of FPV flying, but to also complement my focus on the rig I have... better aerial footage, and exciting new bash vids. Also i plan to share a lot of content regarding the drone itself. Still waiting for my package to arrive. Hopefully I dont crash the drone on day 1... lol😬

[@toffat6]

@@EastTactics I agree I think alot of your tactics can be applied to other rc cars the main concern I have for the big rock is the fans since it is only a 100amp ESC the fan is 25mm I haven't seen anyone put a 35 or 40 mm on it

[@EastTactics]

Sounds to me like you’ll definitely want to run your upgraded fans then from an external 3s battery. I recommend an 840mah 3s battery, since they are smaller. The real challenge is trying to find a way to fit/mount the larger fans to your system. I take it you haven’t been able to find an ESC mount that can lock onto a smaller 25mm ESC and convert to a larger attachment point for say 35 or 40mm fan? Not sure if one exists. 
Are you having trouble keeping your big rock cool?

[@toffat6]

@@EastTactics not yet but I live in California and the summers will be a challenge trying to think ahead but yes still searching for a bracket solution

[@cwizzles]

Color doesn't mean too much. You are looking at a black oxide coating. Depending on who did the coating you will get color variation.

[@EastTactics]

Colors means a lot, especially in context to the newly manufactured EXB parts which are made with these updated features. Either way, there was an update in both the design and the manufacturing, that much is clear. When buying one (if the need arises for you) wouldn't you rather have the one newly of the line? Even if it's skeptical chance you have of it being made better? Appreciate you watching and commenting.

[@jcocanour]

Nice video and thanks for sharing what you found. Have you actually run a new hardened input gear with an original V4 diff?

[@EastTactics]

Not yet, plan to shred the ones I have first. But I am 100% confident they're compatible. Check the part number on the ring gear that meshes to this input gear for both the V4 and v5. They are the same. The V5 uses V4 diffs. I’ll report the performance difference/longevity when I do though.

[@gees5563]

Very nice 👍 thank you so much for all your info that will fit the front and rear correct?

[@EastTactics]

Yes 😎💪👍

[@gees5563]

@@EastTactics awesome thank you

[@phil_4young]

I've heard them say that their parts are backwards compatible. I think they try to do that so if people want V5 parts on V4 cars they may do so.

[@EastTactics]

That is correct, However when they released The V5 all everybody was told was that it’s running with identical differentials as the V4. So most weren’t looking at the components inside to v5 to be potential upgrades for the V4. Those looking at the EXB as potential upgrades for the V4 learned that in order to run those EXB differentials an entire differential needed to be purchased as well as unique spiral input gears. Hense the video here. 😝👍 The v5 has a hidden gem.

[@AngelLopez-xg7wt]

Does your bearings kind of pop out of you hr racing stering nuckle when you push down on your front end?cause mine does wondering if mine is wrong but there is nothing to do wrong here...

[@EastTactics]

Can you publish an unlisted or private video of this and share it with me?

[@dannycable83]

I wonder if horizon will warranty the v5 input gear for us v4 owners?? I will ask next time I strip one!!! Shouldn’t be to long lol

[@MrMonarq]

nice! well done with that video, like Sherlock Holmes :D.

[@EastTactics]

Thanks kuba! Thanks for sub’n too!

[@Wotup72]

Damn Arrma! Shady.

[@EastTactics]

Yeah… Definitely an oversight

[@Wotup72]

Got to get rid of inventory somehow. This is one way.

[@chowettgoes]

Brilliant (I do mean that) but, but. So I have a V5 and have stripped the input gear. Currently in the UK (May 2021) you can’t buy the ARA311054. It’s out of stock until August! I have two on order, from USA and Finland! But what you have shown me is that the V4 input gear AR310498 should fit, all be it not as good. Am I right? I wonder since you recorded this is you have had chance to compare the two in your car? Appreciate your time and superb video guides 👏

[@EastTactics]

That is correct. You could run it in your V5. However I don’t think you would be able to install the safeD Plastic sheath, you might just have to do it the old-fashioned way and use a little bit of red Loctite on the Grub screw until you get your V5 versions in stock which have the groove for the safeD Components.

[@chowettgoes]

@@EastTactics ah yeah not ever having a V4 I’d not clocked the plastic sheath was different as well. Thanks

[@richardhinchey1999]

Tooth pitch of new hardened steel is different, therefore you deffo need complete housing to prevent gear mashing/stripping. Just a heads up! Or is it a case of both pitches fit very well as is? But normally I'd say my first evaluation would be correct. Nice find all the same

[@EastTactics]

Thx Richard, you bring up an interesting point. So The tooth pitch is only different for the EXB, and that’s to accommodate for the new wider/deeper teeth as well as the angle. However, Both the V4 and the V5 use the same cups, ring gear etc. V4/V5 show the exact same differential ring gear as their “standard part”. Part AR310497. This is evidence that Arrma designed both pitches the same... or improved it with the new input v5 gear to mesh with part AR310497 perhaps even better.

[@benm6811]

It says on modelsports it uses the safe D keyed system is that the only difference or is the metal different maybe so you can use the plastic lock covers like the v5/exb

[@EastTactics]

Yes, the Safe D components can be incorporated into the V4 if you would like. however, you can also simply just use red locktite and install the new v5 input gear into the V4 using the classic method. It does look like the reason why attention was brought to this piece (or the reason it was redesigned was to take advantage of the Safe D feature) however, the description of the new part specifically says hard wearing steel, and upon close inspection has the same look and makeup as the EXB ring gears, and input gears. the latest metal off Arrma's Extreme bash line up.

[@benm6811]

Will be perfect if is mate good job 👏 shame arrma won't advertise this! Striped plenty of these gears as most people have im sure 👍

[@onemansvideos2134]

I will be getting afew...they had to have changed it for typhon also and the v1 infraction runs the same gears

[@EastTactics]

You’re right, however their website is still broadcasting the old version for those vehicles. So knowing what you know now, you’ll get this better one

[@onemansvideos2134]

@@EastTactics I appreciate this video...I seen that they looked different in unboxing videos that they opened the dif box but nobody did this im excited cause that is the weak point in my arrma

[@paulrakis]

Hey ET I've been installing those input with the small indent for the grub screw. Does it make any difference which side I tighting the grub screw on? The flat side I don't use not which waybis right if anyone on comments here can please let me know. Tanks guys

[@EastTactics]

Check out the video at timestamp 12:13 The grub screw will lock up against the larger of the flat sides.

[@paulrakis]

@@EastTactics thanks brother I got it now. Good thing I didn't install it with the flat side. Your the man ET 👊

[@EastTactics]

🤜🤛

[@max2max706]

Hi, I've been a bit stunned lately, a bad time, sorry. So to put this more robust V5 part in my Typhon v4, would I have to change the whole diff lock? Thank you. " i don't understand english well"

[@EastTactics]

No You can just buy the updated main spiral input gear and install in (in the classic way) into your V4 Typhon. (Be sure to use red locktite on the grub screw) You can fit the V4 outdrive cup over the new input gear. Its your option if you want to pick up the V5 outdrive cup to pair with it, and again also optional if you want to incorporate the SafeD plastic sleeve over the V5 outdrive. Lastly... you do not need to change anything regarding your differentials, they are 100% computable with the new (v5) main spiral input gear. Does that answer your question?

[@max2max706]

@@EastTactics Yes, thank you!

[@wolfreon]

do you put threadlocker on the input cup's grub screw? this upgrade actually helped me.. grub screws can't stay still with the vibration. I actually killed two 43t in just a month because of that. I already used blue threadlocker but it doesn't seem to hold it. So, this upgrade plus permatex orange threadlocker should fix it.

[@EastTactics]

For the V4 Classic installation for the input gear (Naturally when not considering any of the v5 safeD stuff, Is to always use red Loctite when securing these tiny grub screws. While yes this does mean it usually is a pain to remove the grub screw because you need to incorporate heat (I have a lighter size butane torch that I like). But yes blue Loctite is not going to do the trick. Definitely use the red. Even if you pick up the V5 input gear and install it (again, when not incorporating the safety cup/sleeve) you’ll want to use red Loctite. Red Should also be used on your pinion gear for your motor pinion again heat being the means of the removal.

[@wolfreon]

@@EastTactics thanks bud, I wonder.. Can you remove the safety when it's screwed in? I don't want to melt it when I apply heat, you know

[@EastTactics]

I’m not 100% sure because I haven’t been hands-on with the safety cup/sleeve. But from what I understand you don’t need red Loctite when you’re incorporating those components, I guess the whole point of why the upgrade came about in the first place with those safeD parts was to make it so the hassle of needing red Loctite unnecessary. Because yeah if you put heat to the plastic it will melt it. Are you running the V4?, When you upgraded the main input gear to the V5 how much did you pick up the safeD stuff too?

[@wolfreon]

@@EastTactics I'm running v4 but I got mixed up with other parts from v5 and exb.. I buy parts from jennys

[@EastTactics]

Smart. So did you end up picking up the safetd components to?

[@Larrypint]

Fit these parts in the arrma granit?

[@EastTactics]

Negative Granite Exploded view www.arrma-rc.com/on/demandware.store/Sites-arrma-us-Site/en/Product-ExplodedView?pid=ARA4302V3 V5 kraton exploaded view www.arrma-rc.com/on/demandware.store/Sites-arrma-us-Site/en/Product-ExplodedView?pid=ARA8608V5

[@MuscleAKAOzzy]

Surely an upgrade but lm thinking of 2 exb lsd diffs and 2 exb input gears to fit on the v4 and make it a different beast altogether as they say driving it is a complete different experience 🤔

[@EastTactics]

Yes… Especially now that I’ve got two ring gears sitting here. Eventually I will also be running for EXB differentials.

[@MuscleAKAOzzy]

@@EastTactics its the 2 non lsd diffs he has fitted but stronger all together

[@paulrakis]

hey buddy. you i agree i had arrma send me one because im rear input gear kept stripping. should i leave it tight into my diff or have it with some play so it can flex. in other words move back the grub scew from the input gear to the diff this way it will have little play? this is my 3rd time changing it because i believe i just put the input gear all the way forward to the diff housing solid without any play. thanks brother talk to you soon

[@EastTactics]

you want there to be zero play anywhere in the system (and what I mean by system is regarding your main spiral input gear and your outdrive cup) you want that out drive cup to be pushed in and seated all the way back as far as it can go before you tighten that grub screw. Now... That all said, if you want to impact your mesh regarding your differentials ring gear and your spiral input gear then typically (especially if you’re having problems) Your mesh is likely not tight enough. So in order to increase the tightness of both the spiral input gear and your ring gear you’ll actually need to add a shim just behind the spiral input gear. This will Push the input gear slightly closer. If your mesh was too close like you were thinking, then after seating the differential into the housing if you were to take your finger and spin the ring gear it would make a sort of high pitch clicking noise. Is that the case? Maybe when you’re about to install it, before you button everything up you could send me a short video clip of the sound of the mesh.

[@paulrakis]

@@EastTactics thanks east for the fast reply. Yeah sure I definitely post a short video on that. Not sure about the nosie but already twice only 1 run I had a clicking noise in the rear ring gear is ok slight wear but input gear was very Sharp so no good. I got it with play the input gear would puch the ring gear on a bash or even just driving it around and will force a chip tooth in time. Yeah so gonna install the In put gear tomorrow and il post a video. East what is your name if you use it on here ? Unless you just like East for a Nick name 👍👊👍👊

[@EastTactics]

Randy East is the name😎👍

[@paulrakis]

@@EastTactics Ok Randy nice to meet you buddy. talk to you soon man. i just post the small video on this video since its about the new V5 input gear which everyone should be getting that has a V4 6s rig

[@paulrakis]

HI Randy all good now bro yeah my input gear was too loose that was issue. installed new just now runs great no issues now. your right on that. I had a shim in the front so i only left like 2mm maybe of actually play but its very little thats how the exb rear is as well.

[@cwatson42785]

I've heard alot of complaints from exb owners about the diffs.

[@EastTactics]

Yeah, supposedly if you go in and get them shimmed up properly they should be good to go. But… Seems like the classic differentials are toted to be dependably solid when shimmed up correctly too.

[@navbes]

and what about the nut? for the new input gear with hardened steel you must have the V5 nut and it's maybe the same than the EXB nut? ( because you have two flat sides)

[@EastTactics]

Great question. I assume you’re referring to the Grub screw That’s inserted to hold the outdrive in place. That Grub screw will be included with your outdrive your using. With the V4 it will be installed in the classic manner by applying red loctite and inserting it through the outdrive onto the flat face. Both new and old input gears have this elongated flat face for that nut/grub screw The other flat side that you were referring to on the new hardened input gear is a face that is been grooved into it to incorporate the new safeD feature that you’ll see in the V5 and EXB. While the safeD components are obviously available and even recommended to incorporate, technically you can install the input gear into the V4 (or any set up for that matter) in the classic way V4 owners have been used to, ignoring the safeD feature. Technically tho, if you’ve got the improved input gear, you might as well take advantage of the feature. Does that answer your question?

[@navbes]

@@EastTactics yeah great answer !!! lol thanks buddy

[@phishitaac]

i have the v5 but it has the v4 input shaft.soo. but i bought the v5 input shaft with a new ARA310497 and it wont mesh.

[@EastTactics]

The main diff gear is the same on both rigs. the cut on both V4 and V5 spiral input gears is the same. What part number spiral input gear is not meshing with part ARA310497?

[@kylekruger1848]

My diff cup doesn’t fit with the input gear I got. Are their different cups?

[@EastTactics]

Yes, the spiral gears mentioned in this video are for the V4/V5 vehicles. My guess is you have an EXB? The differentials and input gears are different in the EXB

[@kylekruger1848]

Yup you are correct. I found it having to be the Safe-D ARA310977

[@rogueFactor]

this problem gave me an entire month of headaches til i figured it out LAST WEEK. where was this video in my feed last year! dangit youtube! how about that... what in the @$#^$^& @#$%@#!@$ am i supposed to do now? i just realized this issue but that 10 degree difference(due to the the tooth thickness on the new 43t gear) in upgraded spiral cut input gear jacked up my diff, case, outershafts, just tore up the whole butt. i'm gonna have to spend some cash to fix this problem. seems it was a change that Horizon made, since it appears to be a change during v4/v5 updates.

[@EastTactics]

Are you saying you put an Exb spiral input gear in your V4? Because the V4/V5 have the same spiral cut. The v5 version is just better material.

[@rogueFactor]

@@EastTactics yes. hence

[@joseCalderon1976]

Nice. But what about the ring gear? Is it the same as the V4? I managed to chew up my rear diff ring gear and output drive on my V4 diff. 🤔

[@EastTactics]

Both the V4 and the V5 use the same cups,internals, ring gear etc. V4/V5 show the exact same differential ring gear as their “standard part” on Arrma’s website. Part AR310497. I’m actually not sure why they didn’t upgrade the ring gear as well. Perhaps they will in the future. Or perhaps they really just wanted to incorporate that safeD feature, which is why the input gear is the only thing that got attention. Either way we might as well grab a their Newest designed one moving forward. 😎💪👍

[@joseCalderon1976]

@@EastTactics So they upgraded just half of the component. Oh well. What they need to do with the V6 is to shrink the 8s Arrma diffs and slap them into the 6s line. My 8s Arrma diffs are running strong even with the extra power of the XLX2, 1100kv motor and 35/47 gearing 👍

[@EastTactics]

Nice! That thing sounds like a beast! That would be interesting if they could/would do that.

[@joseCalderon1976]

@@EastTactics Outcast 8s double backflip towards the end of that video kzbin.info/www/bejne/nqeUZGt3eJaoidk

[@EastTactics]

Nice! Sub’d ya

[@onemansvideos2134]

They want us to find out ourselves

[@FCHDGaming]

So can I buy a the hardened steel pinion and put it straight into a v4 diff

[@EastTactics]

Yes, new part number in the description

[@ETAI106]

Randy, So which should i pick for my v1 Mojave?..

[@EastTactics]

Ara311054 She’s the one you want. Looks like on Arrmas website the standard part is showing this already for both the V1 and the V2. However if you got the v1 there is perhaps a chance you got the old version. So just make sure whenever you replace it you pick up the part number I listed above. However there is a chance, that you’re already rocking that input gear.

[@gonzodetroitify]

But would we v4 owners also need the spiral crown gear if we do this unspoken input gear upgrade Ohhh snap happy new year 🥳

[@EastTactics]

Nope, V4 owners only need to pick up the V5 spiral input gear. Because it matches correctly with the V4 differentials Crown gear/spur gear. It has the same pitch/mod. The V5 uses the V4 differentials. Thing is… Arrma improved the input gear, and simply didn’t tell anybody, They just sort of tossed into the standard parts for the V5. But that gear is a V4 killer upgrade! Thanks for watching!

[@josephcaruana9165]

It should be the case hardening that they use because if they use a very hard steel it will break the teeth of the pinion, something else in my experience it is better to change the crown wheel and the pinion as a set to wear out evenly otherwise it could break if the mesh is not matched.

[@EastTactics]

You make a good point, The weakest gear is likely going to be the one that takes on the wear. However matching a strong or higher quality gear to a lesser quality gear it doesn’t make the whole system any weaker. In other words it doesn’t necessarily make the weaker gear weaker than it’s given state. Technically it is possible to say that the whole system does not get improved when installing this hardened steel input gear as the chances of stripping are still the same for the lesser quality ring gear. However the nice thing about this hardened steel pinion gear is that of the two components that strip (if one does at least it won’t be the input gear which is more of a pain in the butt to get out. I would also agree with you, that in an ideal world when replacing one, you replace the other so that the measures are back to perfect. However if the harden steel input gear is untarnished and you end up stripping the ring gear only..All you should need to replace is the ring gear and the mesh should be back to perfect again. Hopefully… Arrma, Who obviously seen the need to improve the quality of the input gear eventually releases a V5 spur gear made of the same material. Hopefully sooner than later.

[@EastTactics]

Also… I just realized in regards to your comment about it should be the same hardening between the two. If you look at the V5 it comes stock with this hardened input gear, yet it’s paired to the V4 non hardened ring gear. So arrma themselves Do not see an issue with matching hard steel to non-hard steel. Hopefully in the near future, since obviously they seen fit to upgrade the input gear, they also released an upgraded ring gear for the V5. Which would intern be an upgrade for the V4.

[@josephcaruana9165]

@@EastTactics I am not concerned about the quality of the ring gear because it has much more teeth so it is going to wear much less although still it needs a good case hardening but if you change one of them and not a new pair or matched set you need to run in a bit cautious and not full throttle straight away to give them a chance to bed and have a better surface contact otherwise it could be making some extra pressure on smaller surface and it could shear the teeth or it does not last long. Something else that we are not mentioning is the type of grease that we should use to lubricate the surfaces and I would like others to give their comments from their experience, in my diffs I am trying out graphite based grease that is used in cv joints and has some molybdenum disulfide in it for less friction, up to now it seems that it is doing its job.

[@EastTactics]

@@josephcaruana9165 - You make some good points. here's the stuff I use in the diffs. Has worked really well. amzn.to/3oHbKYt

[@josephcaruana9165]

@@EastTactics It looks quite good and you should have great results.

[@greendemon70]

I bought a second hand Kraton and I'm not sure if it's a V4 or V5. How do you tell the difference?

[@EastTactics]

What ESC do you have? Is it the BLX 185. If so it’s a V4. If it’s spectrum it’ll be v5

[@greendemon70]

@@EastTactics I bought it second hand, it's got a hobbywing ezrun esc

[@EastTactics]

Odd… What about motor?. Maybe send me some pictures. [e-mail]

[@greendemon70]

@@EastTactics I will when I get home from work. Thanks

[@JustKeepLivingFPV]

Goto jennys rc and you can get gp4 complete for 50 or less

[@EastTactics]

Love Jenny’s

[@christiansrcs7789]

Will this work with my arrma senton blx

[@EastTactics]

Yes, if it’s yours the same differentials set up is the kraton, Talion, outcast , typhon etc.

[@christiansrcs7789]

@@EastTactics it’s the 3s one it’s stock

[@EastTactics]

This spiral input gear is for the 6S line

[@christiansrcs7789]

@@EastTactics 😔 is there one for the 3s?

[@GyuHobbyRC]

The video is so cool. friend Become a thriving channel. Let's get along. 친하게 지내요. 😉😉😉😉

[@mattpotts8561]

How the heck do u get that sleeve off lol. I took grub screw out and pulled and pulled lol.

[@EastTactics]

It’s the red Loctite. You’ve gotta hit it with a small butane torch for a good 30 sec to get the whole metal piece super hot. And then take a butter knife or a screwdriver and wedged in there in twist and it will come off.

[@mattpotts8561]

@@EastTactics i think u have the best youtube channel 🤣 u always reply to old videos! Appreciate ya again.

[@EastTactics]

Thanks Matt, I pride myself on replying to every comment. Hopefully this can remain this way forever. :-)

[@mattpotts8561]

@@EastTactics sounds good brother! And i hope so because you find out a lot of good info haha. Have you tried the new v5 input gear on the v4? I hope i have mine shimmed right this time. I just ordered them.

[@EastTactics]

@@mattpotts8561 I have, and its been flawless since. but Ive not abused it either. lol

[@claytonbrown8911]

Have you tried this out yet to see if it holds?

[@EastTactics]

This time of year I don’t bash is frequently because of the cold weather. So I picked up two of them with the idea that they will replace my current version 4 spiral gears as needed. So no... haven’t tossed them in yet. However I know without a shadow of a doubt they are 100% compatible. Not only have I conversed with many people who have already installed them, I also have emails directly from Arrma, Where they have confirmed not only are they 100% compatible but they are also an upgrade machined part. However you might be interested to know that Arrma also confirmed that the drive cup that slides over and the V5 main input gear was also upgraded, naturally as part of the safeD Sleeve functionality. While that part at least in my experience Has never even remotely been An issue, it’s still nice to know that it’s “buddy part” also received the same treatment. However knowing that, I did 100% confirm that the V4 Metal drive cup is still a match over the V5 spiral input gear. Arrma support confirmed, but still stated that they actually recommend if you do upgrade to the V5 input gear, they recommend also upgrading to the V5 outdrive cup. It’s your call if you want to do that, and if you do heck… Might as well pick up the safeD stuff too.

[@digeolrc8586]

The same teeth with stock is that?

[@EastTactics]

Yea, same teeth, same pitch, for the v4/v5. Not the EXB

[@digeolrc8586]

@@EastTactics thank you

[@ETAI106]

Cant hear u well on your vids.. Anychange improve that..?

[@EastTactics]

No problem buddy I appreciate the tip. Odd though… This is probably one of the first videos I’ve dropped out of many where I actually didn’t upload any music in the background. So I’m surprised you’re having trouble hearing it. I’d say click the volume up a few notches. But I guarantee you already done that so I’m not sure what the issue is. Either way I’ll keep it in mind. Thanks for watching, hope it was helpful.

[@ETAI106]

@@EastTactics volume is full up.. but was hard to hear.. 🤔.. Thx for replying.. 😎

[@rccircus7271]

Yeah ur mic is always quiet dude

[@Blobberflop7]

iii

[@feet2696]

They want us to keep stripping our gears..$$$🤔

[@EastTactics]

🤔😝

[@feet2696]

Ive gone threw 3 sets of all 3 ..front back n the middle..😤..but don't get me wrong the truck is a beast..i don't think they make a tire that can handle wat this Kraton puts out..😳

[@feet2696]

I have the 4s Kraton 6s Kraton the Fraction..n just got a senton..

[@EastTactics]

Nice, You do go in and shame about your differentials right to make sure they’re bulletproof?

[@feet2696]

@@EastTactics shame??

[@cobra81li200]

Ok let me put this straight right here. The gears have ALWAYS been hardened steel and the V5 input gear is EXACTLY the same material as the old version. The ONLY difference is that it takes the new SafeD input cup. So sorry to disappoint but there's no scoop there.

[@EastTactics]

Please link to your evidence validating your point.

[@cobra81li200]

I designed both parts.

[@EastTactics]

I looked you up on Facebook and KZbin. not a single indication you work for Arrma. You’ve been a member of KZbin since 2006, Again if you worked for Arrma, or any prestigious engineering firm there would be an inkling of evidence. Proof, I dare say has not been provided. Just telling us you designed these parts is not proof.

[@jessewoodworth3888]

Great Find Randy!! I just got a V5 kraton and the chassis diff bulge is different from my v4 OC? Do you know why arrma did this change since the diffs are exactly same size as my v4 diffs? Wondering if I can use exb diffs now on my v5 kraton instead of the stock? Thanks in advance bud! 👍

[@EastTactics]

Yeah I’m not 100% sure why they modified the diff bulge on the V5. Might require you to do some modifications or handiwork with a Dremel to get third-party skid plates on it I’m sure it’s still doable. I guess Arrma had a reason why they added the space/extra bulge. Either way though even if They didn’t modify the diff bulge, The differentials between the V4, V5, and EXB are all interchangeable with each other. Granted in order to run the EXB diffs In the V4/V5 you have to convert the entire differential including the input gears over. But yeah you can certainly put EXB differentials in the V5 or the V4.

[@rooseveltrainesjr7618]

Too he'll with those arrma input gear go on eBay an see those new input gears an ring gears. I stripped everything in my arrma Tallon. But not these new gears I found. Arrma u should be a shame. Selling junk like this. O.n . These hi power vehicles.

[@mattpotts8561]

What are they called?

[@rooseveltrainesjr7618]

@@mattpotts8561 not sure but search them good on eBay. The input gears will have a slant to them in the groves. The normal ones are straight. Also buy too . U have to change back an front . I bought mine a year ago an Mine still in the package. I have too many other cars truck to play with