ARRMA 1/8th - Senton 6s | How to build bullet proof diffs

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www.arrma-rc.com/
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Produced by
/ tppartsrcextreme
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Music by
www.bensound.com/

[@cl-audio322]

Thomas, thank you sir for this vid. I was able to follow it to do maintenance on my Kraton's center diff, take it apart, clean it up, add oil, and put back together. I had already bought the TD planetary gear shims. I didn't know about the 2 extra washers though. Got them on order. Please keep up the how to videos, step by step for us noobs learning to wrench. Every time you have to fix, add, repair, maintain, just record for it us!!! LOL! Much appreciated.

[@TpPartsRcXtreme]

Claudio Moody thank you mate

[@cl-audio322]

Hey Thomas. There is a thread on the ARRMA Kraton forums with some confusion about that little shim/spacer you put on right at the very end of this video. I thought it was a bearing shield or something but I only saw one when servicing all 3 of my diffs. Have you noticed that it is installed by ARRMA on every diff? Do you recommend it on every diff? I do not see it in the manual and there is no part number for it. Thank you sir.

[@TpPartsRcXtreme]

Claudio Moody hi External shim to get right mes between ringgear and diff pinion. Outcast 6s are shimed from factory, the others i cant tell PD1896 or dimension 16x13x0.1-.03

[@marko123marki]

today i was servicing my k6s diff...adding extra shims mugen one and tekno for outdrive cups...and after i done i find this video. Very nice 👍 step by step. next time i know which one video will help me.

[@AdrenalineAshRC]

The best how to shim your diffs on youtube ..thanks bro . Your idea helped almost everyone that has an arrma vehicle. Thank you 😊 😎

[@seriouslynotacop]

I hear this music every time I service my diffs now.

[@TpPartsRcXtreme]

Corey Fields haha me to mate..cant say why i picked this one..hate it ❤

[@kreizmann2943]

that music is nice make me think about meaning of life never mind thats rc hehe

[@stefandwoodham]

KrispyRC STFU

[@kreizmann2943]

455 stage-1 lol

[@David-069]

Hi there great vid by the way. Do you know if you can fit the big shims that covers the seals on each side of the diff on a kyosho vintage usa1 nitro i want to also add another set of the spider gears. I think the diffs are the same as kyosho turbo Burns and mp 7.5.

[@TpPartsRcXtreme]

Thank you sir🥰, sorry for a late reply😢. No i cant tell brother, dont know

[@utrak]

Great video, essential to Arrma 1/8 owners.

[@coreykurtz1404]

You make great videos, was wondering if this is how you do all you Arrma 6s diffs! Thanx, also what weight of oil you running in your Kraton diffs and shocks,

[@TpPartsRcXtreme]

thank you. i recomend shim all diffs regardless brand. In my Kraton 6s i run 7k rear 100k mid and 60k front

[@philipjolley1015]

nice man thanks.. thinking of drag racing mine this will be a handy video.

[@foorcscale]

Looks good. I had noticed there is a little back lash in the diffs as standard. Will give it a go......

[@InTheDogHouse3DPrinting]

I was replacing the oil in the diffs on my Typhon, and when I got to the center diff the gear in the bottom of the cup was broken down the center. What would cause that? The rest of the drive train was in great shape, and it doesn't have that much run time on it. Also both shocks shafts on the right side of it were bent as well, so apparently someone wrecked it pretty hard, but I didn't see any apparent damage to the vehicle. Thanks for a great video.

[@3SonsRC]

Great video, is it somtimes necessary to add another shim outside the bearing to remove any slop left and right of the entire diff?

[@TpPartsRcXtreme]

Yes, i recomend to check before bash if its needed🤗

[@AdrenalineAshRC]

Hey bro your video helping loads of people thanks a lot 😁. Quick question where can I get the shim under the planetary gear from ? I don’t know where to look

[@TpPartsRcXtreme]

Morning buddy. Thank you. Should be able to use TEKNO,XRAY,KYOSHO or AE shims in the same size ❤

[@TpPartsRcXtreme]

www.amain.com should have

[@AdrenalineAshRC]

Tp-Parts Rc-Xtreme thank you so much. I was looking everywhere for the Shims and it kept saying out of stock but thanks bro found what I was looking for on there, really appreciate it 😎👊🏼

[@kaysonosborn5247]

Adrenaline Ash RC hey what did u end up ordering?

[@nosyoj5140]

i'm confusing bro with 2 shims and 1 shims on both side of the satelite gears..anyway bro when u fixed it and turn the gears all around it is not hard or rough? is it smooth isn't it?or it depends of the shim size right?

[@TpPartsRcXtreme]

the 1-2 was actually stock on this diff..so i have done it on all. the bigger is placed behind the Planetary gears, this saves the diffcup,o-ring and ad little more pressure towards all gears. it is smooth,BUT you can feel the teeth.

[@SEELEYJP]

yeah , my center diff outdrives on my senton are very very sloppy......i think its because there is no washer behind larger planet gears (like you add)......i have been using a mugen diff which drops right in and can use plastic spur gears with diff teeth......the plastic spur rubs for a little bit but then it wears and is fine........would like to fix the arrma diff though

[@chadcarpenter9742]

I realize this video is from 2016 but I'm working on my nephew's kraton and I shim the diff the exact same way you show here ..but it binds up..not smooth I had to take all the shims out except one shim behind the one planetary gear. Do I not need all the shims for a new gear set ? Because that's what I'm working with..

[@cwatson42785]

Maybe Thomas will answer as I'm also interested in if it works for their new diffs on a v4 kraton.

[@killshanks]

I can't thank you enough for providing this video tutorial. I totally blasted thru my center diff build for my Typhon thanks to you!!! Excellent video! I'm gonna look for the bulletproof kit thanks so much for the PN All The Best :)

[@jasonpark5692]

such a helpful Video! the part with the crosspin made with the drill bit, is this a know part to break? is the drill bit hardened steel?

[@TpPartsRcXtreme]

Jason Park yes it is hardened. i have no issiue with the stock wich ive been using for my latest Kraton, but ive read that some have broke it.

[@thedeadlee690]

so after placing a shim on the ring gear bearing as shown near the end of the video my motor unsoldered itself after about 3min of driving. Everything felt like it rolled smoothly but I guess it was to much added friction. The diff shims worked great, i should not of did the ring gear, now my month old Novak HD8 is shorted.

[@TpPartsRcXtreme]

that is sad to hear. since all cars are not identical, some may nees 1, 2 or even more shims on the ring gear and some do not need it.

[@nosyoj5140]

ok bro.tnx for that and u shared your ideas, I appreciate that.

[@CmwSpeedrunUk]

Beautiful work

[@TpPartsRcXtreme]

Thank you sir

[@robrob1596]

I'm considering spooling my arrma kraton.. I'm experiencing a lot of understeer in high and mid grip cenarios. I noticed the center differential is extremely loose and open differentials as a whole are very loose differentials and don't apply power properly to each tire. Would you recommend running a spool? I'm looking to do sharp drifts in high-grip Street scenarios with a blip of the throttle at the moment with the best suspension setting a performance very poorly with high amount of understeer. Do you have any suggestions or recommendations? The arrma is barely capable of turning around on a 20-foot radius at less than 5 miles an hour. On high grip scenarios the arrma kraton is ridiculously crappy when it comes to understeer how do we fix? this?

[@OffRoadMotoFilms]

Can you make a video on how to change out your center diff gear

[@nosyoj5140]

what a great job bro. tnx for the details by details video

[@thedeadlee690]

Could you please tell me the part number for the large thin shim you placed on the outside of bearing at the end of the video? I did the rest of the shims like you said and it's working awesome, thank you very much for the tips.

[@TpPartsRcXtreme]

yes in a few houwrs mate

[@BUILTLIGHTWOUNDTIGHT]

AWESOMENESS !!! great video sir, & thanks for sharing this with us !!! ;)

[@bestpatate]

Hi thomas, do you recommend to shim all my diff like this in my kraton !? And another question for you, whats the best spring for jumping , i send it on big jumps on 6s and i change the oil for thicker and the stock springs doesn't do the job at all. Thanks for answering and nice video !!

[@TpPartsRcXtreme]

bestpatate morning mate, yes all 3 diffs internal and front/rear external for right mesh between crowngear and inputgear. Ohhh..i run stock on 32.5wt rear and 35wt front. Seen people running yellow and orange Tekno springs

[@OffRoadMotoFilms]

Hey what size pinion do you use for off-roading and can you make a video on how to change out the diff oil in the center diff

[@TpPartsRcXtreme]

OffRoad Moto Films il see what i can do sir. basicly its the same as front/rear but no outer shiming is needed. depends on what tires i run. but most stock or optional that comes with the model.

[@OffRoadMotoFilms]

Tp-Parts Rc-Xtreme well my senton came with a high speed 16 tooth pinion and I have a 15 tooth in my senton now Could I use the 16tooth for bashing off road and just off road terrain

[@TpPartsRcXtreme]

OffRoad Moto Films i think you can, but check temps

[@OffRoadMotoFilms]

Tp-Parts Rc-Xtreme ok.... what size pinion do you use with stock tires

[@TpPartsRcXtreme]

OffRoad Moto Films i dont run stock tires, only 1/8 buggy like badlands and paddles. but i run another motor, Leo 4092/1730 geared 22T

[@dannyboyrecks8545]

Thomas sir,was that 5k diff oil you wer using on yur rear diff??

[@Clickbaiters]

New to Arrma but definitely not to RC. What are you doing that's different (if anything) as opposed to how these diffs come from the factory?

[@TpPartsRcXtreme]

xXG.L.HXx rhey come with no bogger sunger shims.

[@Clickbaiters]

Okay, I see. Thanks👍

[@emersonb5764]

What is a bogger sunger shim?

[@1grungeboi]

@@emersonb5764 Bigger sun gear shim lol

[@Backcountrysportsmen]

Is this the same thing I’d do for a V3 Kraton as well? As in same number and size shims? Thank you

[@rafavw1974]

thank you all your tips are great.

[@OffRoadMotoFilms]

What's the thicknesss of your diff fluid in your senton. Also I want my senton to do wheelies so If I put 100k diff fluid in my center diff and kept the front and rear the same do u think it would wheelie. I have the v2 senton with a 15t pinion

[@TpPartsRcXtreme]

OffRoad Moto Films hi mate, i run 100k mid. 😊 but now i have a 4092mm / 1730 geared 22t on 6s and its demonic

[@OffRoadMotoFilms]

Tp-Parts Rc-Xtreme what if I put 500k in the center do u think it would wheelie

[@TpPartsRcXtreme]

OffRoad Moto Films yes..gonna be a wheelie on demand truck 👊

[@kentrapnell9905]

Very helpful! Thanks for sharing.

[@TpPartsRcXtreme]

rhank you sir

[@3SonsRC]

Center diff was different for me also because I went from stock oils to 500k, and the screws are tight with both plainitary shims this time (was much looser than f/r, but it's the thickness of the oil that males it much harder to turn than original. When going much thicker oil how can you tell you got the shimming right as it going to be harder to turn?

[@TpPartsRcXtreme]

Easiest is to put it together with the amount of shim empty my friend, should be easy to turn but feel the teeth..no binding. The 500k makes it a lot harder to turn

[@onixortiz7978]

hi man me again sorry but im new to the hobby i was searching for the part # td310475 and ar709024 in ebay and i did not found them what brand they are?

[@dpacino6830]

What are the metal rectangles with the hole in it called??

[@nicozev8723]

Thomas, the fact that you have to add 2 shims on one side and 1 for the other, does that affect the way you mount them into the diff? I mean, does it matter if you mount the shafts 180 degrees? Thanks

[@TpPartsRcXtreme]

No, not for me, now like all diff build, its a mount and try..ot will be a bit notchy, but cant be to rough..i have a few cars lile this, but also cars that i had to run reg shim setup

[@nicozev8723]

thanks. So, your setup may not be exactly the same to mine. i might have to put 1-1 shims, or 0-1 or other variant. My Talion is brand new (v3) and i don't want to start using it until i have shimmed all 3 diffs, put all the Voltage Hobby aluminium parts in it, put a cooler on the motor. What weight do you recommend for the diffs? 50 100 30 front to back? or is 50 200 30 better? Thanks again man

[@TpPartsRcXtreme]

@@nicozev8723 i run 7k rear, 100-150k mid, 6ok front..this works awsm for me..ive tried some hysterical 500k 1 mil mod, 100k rear 250 front, but its a trashcan setup for me.

[@nicozev8723]

@@TpPartsRcXtremeok man, i will decide when the time comes, thanks

[@MarcPeezy]

What size is that last shim you dropped on the output shaft bearing?

[@mtctookie25]

Cool, for the guys who don't know how to build a diff.

[@archery8131970]

Ok cool but what about before

[@ChrisYorky]

mtctookie25 funny. For the guys that don't know..... yet you watched it and had to post a db comment. Yes. I'm still upset from two years ago. I hope you have changed.

[@gLippa]

Noob question, are you using Oil or silicone in your diffs? looks like oil to me. Then again Ive never changed out diff fluid ever...

[@TpPartsRcXtreme]

pure silicone diff oil mate 😊.

[@gLippa]

Thank you! Ive never messed with this kinda stuff, so I just wanted to be 100% sure. Thanks again for these videos! and why no more Senton videos?! :( is the Nero keeping you busy?

[@TpPartsRcXtreme]

+gLippa hehe yes and no..gonna rune the Senton today..but need new XT90 before il take it out again. mid next week

[@marc-andrelemieux9769]

Is it normal the diff feels a little crunchy after rebuilding it with the additionnal little shims?

[@801savage5]

Where did you purchase your bigger shims

[@kirkleaman6863]

Great video thanks 👌🏻👍🏻

[@hailo.nguyen]

Thomas, is this for center diff?

[@TpPartsRcXtreme]

All of them

[@thedeadlee690]

greatly appreciated, thank you.

[@TpPartsRcXtreme]

np ☺

[@35bigbri]

hi Tp-Parts Rc-Xtreme...i have the v2 talion .douse the front have that spacer as well at the end of the video. bearing ? if so iv lost it cause iv been getting alot of noise and clicking like its not tight teeth?

[@TpPartsRcXtreme]

35bigbri outer shim. needed to get right mesh between ring gear and diff pinion. could be the issue if its lost

[@35bigbri]

yer its lost ok thanks ill look for one .

[@35bigbri]

www.rprcdistribution.com/eb48-3/tkr1222-13x16x-1-diff-shims-10pcs this be ok

[@TpPartsRcXtreme]

35bigbri they should be ok.

[@AlexTorres-us1dt]

can u give me or tell me what part # brand and type shims you used.....

[@TpPartsRcXtreme]

Alex Torres kzbin.info/www/bejne/jYGrnZeorK2rgac

[@MarsdenBigby]

Whats the point of the new cross pins underneath the planetary gears? Will the stock ones not work?

[@TpPartsRcXtreme]

the stock can snap

[@TpPartsRcXtreme]

+imgone yes it is 😊

[@truboy555]

Where can I download the background music..

[@TpPartsRcXtreme]

truboy555 think i use Jamendo but this is old so i might be wrong

[@rc-teamoberland6907]

Hi Thomas, do you still shim your diffs in this way? Today I shimed my Outcast V2 2018 in this way (2-1 shims on the small planet gears) and it seems to be a little too much...

[@emersonb5764]

Why would you want two shims on one side planetary gear and only one on the other? This will cause the one gear to have a tighter mesh against the sun gear than the other one does. Why not make them symmetrical?

[@ELValenin]

Can you tell me the dimensions of all the shims? Can't find them!!

[@cwatson42785]

Hey thomas any idea if this works on the 2019 6s model diffs?

[@TpPartsRcXtreme]

yes, in stock all shims incl so it does ;)

[@cwatson42785]

@@TpPartsRcXtreme Oh so I wouldn't need to do this? Thanks!

[@car_detailing0327]

I’ve watched this video over and over😂( I’m the rc_runner_308 on instagram you’ve been talking to mate

[@scott_0492]

where did you find the hex bit you are using? trying to find quality ones

[@derekquinones8614]

Can you tell me all the part numbers and all the part names I need to rebuild these thank you ?

[@TpPartsRcXtreme]

Derek Quinones this is all the parts to build a diff for a Kraton diff except ring gear. www.arrma-rc.com/part/AR310436 www.arrma-rc.com/part/AR310444 www.arrma-rc.com/part/AR310439 www.arrma-rc.com/part/AR310433

[@derekquinones8614]

Tp-Parts Rc-Xtreme oh this isn't the same with the outcast?

[@TpPartsRcXtreme]

Derek Quinones Outcast and Kraton share the same diffs

[@derekquinones8614]

If my diffs are brandnew I pretty much just need to add the shims in there right ? Or are some of them parts aftermarket in the link you sent me?

[@TpPartsRcXtreme]

Derek Quinones e new diff incl all the part nr i sent but i also add 2 xtra BIG sungear shims. if you look at my 1st protip video in the orotip playlist in that vid i have the part number for those shims. they are durango shims and are placed behind the 2 bigger sungear in each diff

[@otisskopik1400]

what size is the shim for the ring gear?

[@kreizmann2943]

shims are sold out everywhere what can i buy? pls help

[@dryehabel]

I can't find the shims on Ebay

[@TpPartsRcXtreme]

Raji Abu Alkhuyur you can use any brand, just need to be 5mm Inside Diameter 18mm Outside Diameter 0.20mm Thickness

[@thedeadlee690]

does anyone know a part number for the large shim at the end of the video? I have checked the Web and can't seem to find it.

[@TpPartsRcXtreme]

m.ebay.com/itm/Thunder-Tiger-RC-Cars-MT-4-G3-Monster-Truck-Parts-Differential-Shim-PD1896-NIB-/151442854079?nav=SEARCH

[@TpPartsRcXtreme]

thanks mates, hope it helps ☺

[@nooniecurry9248]

Do you sell these diffs ready to go ??

[@TpPartsRcXtreme]

I am sorry buddy, i do not 😞

[@nooniecurry9248]

Thanks man ...

[@archery8131970]

do the stock diff gears fail?

[@TpPartsRcXtreme]

never ever failed me after shiming them and i have like 10 6s packs thrue my cars

[@BOOSTEDLASER]

So many vids of broken difs. Arrma always seem broken

[@RoboDriller]

Did this on my v4, diffs wouldn't turn......

[@TpPartsRcXtreme]

Like allways, its all about test and tune, mo diff are the other like

[@TpPartsRcXtreme]

And the new V4 are now shimed internal.

[@RoboDriller]

@@TpPartsRcXtreme. Even pulled the shims out of the planets to get it to stop cogging as bad. But put a shim behind the pinion bearing to get my pinion depth correct, then like 4 shims on the carrier to push the ring gear in to the pinion to get my backlash tight. OEM diff with factory shimming made it 6" on my living room carpet before it stripped the teeth out. 3rd charge on the brand new car...

[@RoboDriller]

Thank you for the video though. It was definitely right on the money to where I need to new looking. I'm disappointed in the factory diff setup.

[@alexsemushak128]

video instruction - how to kill the differential

[@TpPartsRcXtreme]

Alex Semushak and id like to know why you say so. Been running like this for 2.5 years..never ever stripped a diff. So please let me know

[@alexsemushak128]

creates excessive pressure due to washers. absence of the necessary clearance, this leads to accelerated wear and heat of the oil.

[@TpPartsRcXtreme]

Alex Semushak no it have not sir. And this is mainly for high voltage runs..there is no sign of what yiu describe sir. The diff is still silk smoth ( due to the stock play ). But im thankfull for your input 🤗

[@dannyboyrecks8545]

So anybody noticed he used 5k on his diff?

[@TpPartsRcXtreme]

I did 😋 in rear. 100-150k mid and 30-60k depending on car

[@CASTRO45ACP]

Those shims are sold out everywhere.......wtf?

[@TpPartsRcXtreme]

CASTRO45ACP Mugens fir perfect

[@mrcleanupman804]

what size shim did you use on the outer bearing?