Arrma Big Rock Metal Input Gear on Plastic Crown Gear? Good or Bad...

Well the big rock broke so the big question is, will this hold up better than the all round plastic diff?
The 13 teeth plastic input gear can't hold up to the heat and overall torque, I've already lost one in the Typhon running a Max10 ESC the Big Rock has a Max8 🤯
Also is the quality of the metal input gears upto standard, have a look and tell me what you think in the comments.
Thanks for watching and as always, CATCH YOU IN THE NEXT ONE!

[@gmcevoy]

I think shock load upon landing a jump got the best of the plastic pinion. It shouldn't happen again now. Wait and send, I guess? Top job man. Keep it up.

[@mehimrc1314]

Yeah I have have it some hell at the hate park ect maybe it was time, funny how it went though 😂 Yes let's see if this madness will last longer than stock set up.

[@SpeedSyko]

Ok, so I have many friends here on KZbin. I’m behind watching videos. I had to watch yours first! What does that tell you? Your Awesome! Cheers my man! 🤘👊🍻

[@mehimrc1314]

It's tell me, I was the last to upload so first on your list 🤣😂 oh I tickle myself sometimes. Thanks for watching bro 🤙

[@EnjoyLifeLikeaKid]

Learned a lot. Thanks for sharing.

[@mehimrc1314]

👍

[@davenorris6270]

My thinking... ring gear much harder to replace. Am going to try metal ring gears with plastic inputs. Yes the inputs will wear but the ring gear should last FOREVER. Just keep a stash of inputs, they are fairly easy to change.

[@Benjamin_Reese]

You: "You guys probably think I'm crazy" Me: Yep, but so am I 😂

[@mehimrc1314]

🤣 well in not alone in this world, fingers crossed for abit of success.

[@islandrc-duke1972]

Great information and awesome RC

[@mehimrc1314]

Something to look out for when considering the huge price difference.

[@islandrc-duke1972]

@@mehimrc1314 😁👍

[@NewLifeeight]

It should be fine. I've done it and it always worked out.

[@mehimrc1314]

I imagine the metal input will eventually eat the diff gear but it's held up so far. Metal yokes are the ideal thing so I've heard.

[@ThompsonRc]

I hope it holds up my big rock does the same thing haven't had it happen with my senton yet

[@mehimrc1314]

I'm hard on my Typhon so lost one there, first one on the big rock but come on its a Max8 had to be expected. Hopefully your senton keeps on going man they look great but I have no use for one.

[@ksrnate]

To be honest I think that's the best way to do it! It's the input gear that fails not the crown gear. And if ya think about it, your pinion is metal and ya spur is plastic and they're ok, infact I'm still on my original spur gear! 😳 And you know I've had my big rock for a while now, everything else in the drivetrain has failed apart from the plastic spur. So if your new metal input gear lasts (which it will) then maybe your crown gear will last a lot longer too! That's a winner I think pal 👍🏻🤘🏻🤘🏻🤘🏻

[@mehimrc1314]

Couldn't agree more mate, that's why I think there's a method to this madness but I could be wrong. However plastic spur takes a beating of the pinion like you say so even the main diff should last longer. Proof is in the pudding bro

[@jordanrabins8938]

I've put metal gears in my 3s. A few aftermarket makers as well as arrma

[@mehimrc1314]

I'll be getting parts in bit by bit doing the same

[@robsrcinsanity1220]

Well would you look at that! I hope it holds up for you bro! I’ve run metal pinions on plastic spurs that did alright but never tried in a diff.

[@mehimrc1314]

Same here bro after all, it's metal pinion and plastic spur Sooo.. metal input on plastic only one will break 🤞

[@robsrcinsanity1220]

@@mehimrc1314 The plastic on the outer ring is pretty beefy so it might be alright 👍🏻

[@mehimrc1314]

@@robsrcinsanity1220 yip that's my thinking dude 🤙

[@BIGALSCRAWLERS]

I think the metal to plastic should b fine bro the mesh seems perfect so it should b better than the plastic one I'm not sure about the hole 🤔 y that is there I don't know lol

[@mehimrc1314]

Yeah its a funny thing that hole being there considering that lead right into the diff case, just another way of grit getting in. Should last longer than plastic input time will tell bro.

[@BIGALSCRAWLERS]

@@mehimrc1314 can't u fill it with something?

[@mehimrc1314]

Probably mate but it's in now 🤣

[@BIGALSCRAWLERS]

Lol just see how it goes lol

[@Rawana_Adventures]

Hey mate how is the metal on plastic now. Is it a good upgrade?

[@mehimrc1314]

No it's not an upgrade, the Typhon give up after 5 packs treat it the same as before clickedy clack it's broken on the back.

[@Ryndel]

I had the same happen to me recently. Deciding on helical gears on aliexpress or stock cnc arrma metal gears. Thoughts?

[@mehimrc1314]

Anything over stock gears if your heavy bashing. But I hear metal diff yolks fix the issues, I've got some really REALLY cheap ones off eBay but they need some working out atm.

[@ajking7001]

Armma has the new metal diffs and input gears for 3s and 4s now some is still on back order all the new 3s and 4s lines thay came out wit new metal parts I guess they was tired of hot racing making all the parts 🤷🏾

[@mehimrc1314]

Yip I've got some great footage of the 3s-4s diffs you can buy. Shame arrma still don't do metal yolks for the diff that's still down to hotracing. I'll get my hands on some metal diffs eventually this will have to do for now.

[@charleswayne7221]

I watched this 3 months after you posted the video.. So... How's it holding up??

[@mehimrc1314]

Holding up good so far not much backlash from the diff after 6 packs, Been testing by twisting the diff by the cvds, I'll take the diffs out soon for a better look. Weather permitting I'll have a few more battery packs through it.

[@peetster]

And how is it holding up this combination? I want to try it 2. Thx for your detailed explanation. Greetings from the Netherlands

[@mehimrc1314]

Hoi! I've only had three runs on the Typhon, still need to check the mesh but all seems good 👍 It's the metal diff yolks you want, I've heard it will stop the plastic gears wearing as fast.

[@peetster]

Hoi! But the combination metal input gear to plastic 37t is still working great? I didn’t knew the yokes from the metal diff where different. 😅

[@mehimrc1314]

Yeah it seems to be holding up fine, the plastic input gear was the main issue for heat build up. Yes even the full metal diff you can buy comes with plastic yolk not metal, that's another extra you'll need to buy if wanted.

[@peetster]

@@mehimrc1314 thx, looking forward to your new uploads. Groeten Peet 😉

[@mehimrc1314]

@@peetster Grooten 👍 hope it will be interesting..

[@rcchallenge8626]

Reminded me I still need to buy a pack of shims, as for the route of grease to the slipper I think it’s a given eventually unless you put a blob of silicone in there or something 🤷‍♂️ time will tell

[@mehimrc1314]

Yip time will tell on this one, weather has turned atm so no testing yet. I did think milliput in the end haha These are the shims I bought 0.5 wider than stock runs better on the inner race and doesn't touch the outer. www.ebay.co.uk/itm/114590536320?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=XJEXTQGfQd2&sssrc=2349624&ssuid=4AoL8TUpRDm&var=&widget_ver=artemis&media=COPY

[@Jamesmoore-mj5ke]

Its better to have a tiny bit of play mine runs great been months since of had to service anything.

[@mehimrc1314]

More problems come if you don't have a bit of backlash 👍

[@e_lifeuk7916]

did it and nope waste of time ened up with full metal cnc exb diff for 3s

[@mehimrc1314]

Do you mean the 4s v2 diff, exb doesn't sound right lol. I already know which way I'll need to go it's just a matter of time 👍

[@Jamesmoore-mj5ke]

Nope plastic will get ripped up??

[@mehimrc1314]

That's what I'm thinking eventually but for now it's holding.

[@a-1430]

Bad it'll eat that crown gear up they make metal one for it now I have it front and rear of my granite.

[@mehimrc1314]

I've got metal diffs now but with a twist, they're not arrma diffs 🤔

[@pukeylukey2852]

What diffs?

[@mehimrc1314]

Cheap Chinese paper weight diffs, that don't work untill you work some magic.

[@pukeylukey2852]

@@mehimrc1314 well i found some chinese diffs that hold up to 4s i had them for over a year and no problems what so ever. They r actually machined metal

[@mehimrc1314]

@@pukeylukey2852 the ones I got looked super promising, made one up it leaked all over and couldn't turn the internal gears. But I've made a paper weight into something that works 🙂 for how long we'll see 😁

[@triple6rcs18]

Noooooo .. I have the power hahah .. go metal all through bro bulletproof haha

[@mehimrc1314]

If I had the funds I'd be there dude, working on it though 😜

[@triple6rcs18]

@@mehimrc1314 Savage.. Well there's now non genuine slipper/spur gear set ups now too incase that fries too

[@mehimrc1314]

@@triple6rcs18 wait say what, there's no stock slipper set ups available? I must check this out.

[@devinw9698]

Honestly I have all metal cnc gears diffs & spur… and I still get the grinding noise due to putting down the power..got 3 shims on rear diff 2 on input gear …change out to the metal diff yoke, same noise went back to plastic yokes ..took it bashing yesterday same noise after 30mins of play n 3 jumps off ramp..oh yea input gear broke multiple of slippers or grinded down the teeth of the slipper…full metal on this car (imo) is not the best..spent some much money on jus this one car & my kraton 6s jus hanging on my wall with lil to nun upgrade..yea I think uma trade in my B-R for my K-6 & hang him up for a while

[@TheGuzo80]

Bad...

[@mehimrc1314]

Well at least both gears can't go 🤣 OR? Haha