Arrma Big Rock center diff installation

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In this video AJ works to install the Mojave 4s center diff pack into the Arrma Big Rock. We also adjust the diff fluid to 10K. Come along and watch as we get this thing installed.
Links:
Diff bearings - Part number #ARA610038 - www.arrma-rc.com/en/search?q=...
Motor plate - Part number ARA311192 - www.arrma-rc.com/en/search?q=...
Center diff - Part number ARA311165 - www.arrma-rc.com/en/search?q=...
Diff module - Part number ARA311169 - www.arrma-rc.com/en/search?q=...
Vorteks wing - Part number ARA480045 - www.arrma-rc.com/en/search?q=...

Music:
Epidemic Sound:
Rockin for decades; You'll learn
Loving caliber; Cincinnati
Kata; Casual
Mind me; Quiet demons

Videvo Music:
Drafting the blueprint; Agreement in principle, Drafting the blueprint, Impliment the whole plan, Trademark quality
Dramatic trailers; Code of honor
Blue collar heroes; Nothing is impossible

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Опубликовано:

22 ноя 2023

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Комментарии : 58

@bananza88 21 день назад

Your method of slow and appreciate your work is timeless.

@arq.andresfelipemoralesvar9593 7 месяцев назад

Super excited to try this in my granite! I think the battery tray won’t be a problem, since the battery holder on that model is sitting on the rear, not on the front like the big rock. Thanks AJ for uploading this video, it’ll help so many 3s arrma users 😊

@joesant1943 3 месяца назад

Did you do it? I have a granite and curious about now

@tydymiler 7 месяцев назад

Thank you for doing the testing on this. I can't wait to do this on my Big Rock!

@anubis9859 7 месяцев назад

I'm really liking what Arrma are doing at the mo. i have an infraction 3s running 4s with a 22t pinion, fitting centre diff seems like a plan. cheers for the show and info.

@DoRC 7 месяцев назад

I found that elongating The depression in the chassis that's already there like it is on the Mojave chassis helps with installing it and removing it. It can be pretty tight without doing that.

@SteveSchmied-vv1pt Месяц назад

Great tip! I could not get it in without doing so. Love DoRC and AJ. Thanks!

@DoRC Месяц назад

Yeah it seems like some people are able to and some people can't without modifying it. Personally I would do the mod either way because once you get some grit in there and it becomes hard to take out I think not having that extra room is going to be a problem.@@SteveSchmied-vv1pt

@stevenschear2922 5 месяцев назад

Man I have been wanting to do this. But wasn't sure if it would work thank you so much dude your awesome

@christopheranderson6931 6 месяцев назад

Helpful, informative video. I was going to sell my BigRock before you posted this. Too bad the parts needed are backordered until May of next year!

@dirtbikedion3233 5 месяцев назад

That’s ridiculous now because all the 3s people doing this conversation the 4s people have to suffer with the car they have broken

@ringothedingo 7 месяцев назад

George watch out for that tree great vid as always aj thanks.

@suncityrc915 7 месяцев назад

That's awesome, J.J.🤩 Like always, amazing & educational content...👍🏼 Thanks💯

@rccarsandmusic2641 7 месяцев назад

Arrma Guru, great step by step, I was eyeing this diff since it came out and now back ordered. Horizon Hobby didn't anticipate the popularity of this diff, even Jennysrc is out of stock of it.

@Mark-yy2vw 6 месяцев назад

Probably sell more diffs than 4s cars, lol

@Mr.Wednesday. 5 месяцев назад

Looks like it rotates in the turns MUCH better

@tiguyrc1963 7 месяцев назад

I really do like to learn with you! Thank You!

@patmarcus172 3 месяца назад

Im going to be undertaking this in my Big Rock this weekend as Im so sick of slipper issues (culminating in the hex snapping inside my 7075 upgraded slipper, this week, rendering it useless). Its really the only thing I hate about the truck and have just as much fun with it (when its working) as I do my much more expensive rigs. Countersinking drill bits on order !

@HugoViard-cm3rd 12 дней назад

in my opinion if you want to race or drive it on road it is actually better but in offroad i don't take as much fun as before with the slipper

@gillian9178 7 месяцев назад

Re the wing, most opt to fit the rear wing mount & wing from the 4s Outcast, rather than screwing the Vorteks wing directly onto the body. Body dosnt get torn up as much when the wing takes a heavy hit, we also fit the 4s Outcast wing mount/wing to the Granite as well to protect the rear of the body. You do have to cut the rear skirt of the body away to fit around the rear wing mount using this method, no problem though.

@GamezOfWar 7 месяцев назад

Typhon 3S wing looks wayyy better IMO

@rctezluh42069 7 месяцев назад

would like to see this next to the 6s, upvoted!!

@Acornejo02 7 месяцев назад

Wouldn't we want the thicker oil to keep the front wheels from ballooning too much ? This is great so thank you for all the information 👍

@S40TBS 7 месяцев назад

Great video 👍👍👍👍👍

@DaliborKasicky Месяц назад

hi, does it not make the drive shaft too long? Thank you, great video

@grayahha 7 месяцев назад

Assuming this mod would work in a typhon3s??🤔

@Krapper515 7 месяцев назад

Yes, all the 3S and 4S trucks are basically the same thing just different chassis lengths

@Mark-yy2vw 6 месяцев назад

Just think how many diff kits arrma are going to sell, one for me for a start

@Theheavyf 7 месяцев назад

I've been waiting for this so long... Does anyone know if this center diff can fit in the short chassis like the granite and the vorteks?

@Krapper515 7 месяцев назад

Yeah I'm curious too. I have the Mojave and I just got myself a Vorteks BOOST. I've done some measuring and the center diff module with the 4S motor, it comes down to about 5 inches exactly, and lining it up with the same Vorteks part, even with the 4S motor, it'll fit, just barely though. But with a 3S motor it should be perfect.

@woutervanwijk4369 7 месяцев назад

Really cool. I just came back from my local hobby shop to check out this option and here you are posting a video on it at practically the same time. However my Big Rock is a V2 (blue body) with an older slipper clutch design. The input gear has a longer spline because the slipper assembly lacks the nut to secure the slipper plates. Does that mean I need more parts to make this work?

@woutervanwijk4369 7 месяцев назад

Anyone?

@flat-out 6 месяцев назад

Just buy my Big Rock V3 from me exactly the same as what this guy in this channel has. I also have a rear wing on mine. Check out my channel I have couple videos of the Big Rock I have.

@Johnnyboy-xc8wv 4 месяца назад

I want to hear this answer too.

@woutervanwijk4369 4 месяца назад

@@Johnnyboy-xc8wv I've tried it. I needed the slipper clutch maintenance kit (just used the nut) and the V3 diff input gear and it works.

@Johnnyboy-xc8wv 4 месяца назад

@@woutervanwijk4369 thanks bud

@allyoucando8486 7 месяцев назад

Not to many people don't know this, that center diff take a lot of the stress the rear shafts prolonged time and less change of parts

@stevegabriel6982 7 месяцев назад

Hey AJ, could you share the model # of that DeWalt drill and make of the red handled driver's? Thanks and Happy Thanksgiving.

@corsomike1 2 месяца назад

What was cost , would you do it again, did it really make that big enough difference

@dylanwhite6539 6 месяцев назад

I really loved my big rock 3s when I had it after upgrading the diffs for $100, but after one too many slipper clutch deaths and the rear driveshafts blowing up I really gave up. Maybe if they release an actually good v4 with BOTH METAL ring and pinions on the diffs and the center diff I’ll order one.

@Johnnyboy-xc8wv 4 месяца назад

Damn I have never broke a axle yet and run hobbywing and 4s with 22t. What you doing to that poor truck? Lol

@dylanwhite6539 4 месяца назад

@@Johnnyboy-xc8wv it did take a solid 2.5 years to break a driveshaft but once the first one gave out 3 of them went back to back. 3s 2400kv 17t

@williamperri3437 7 месяцев назад

NICE! So, you still like those stock wheels?

@AJJAMStudios 7 месяцев назад

Yes. They work well for the platform.

@Johnnyboy-xc8wv 4 месяца назад

I have stocks and belted badlands and to tell you the truth the truck does better on stocks. Obviously they balloon more when we really crank it up but for bashing the truck handles and seems to have a better grippiness for what the chassis wants. They let the tires spin the perfect amount where the badlands you have to be real careful with the trigger finger.

@AsurasWrath164 7 месяцев назад

10k cst in a center diff of a basher? Way too low of a viscosity! I would put 100k minimum! Maybe even 500k! Being able to pull out the whole assembly makes it easy to adjust the gear mesh with audio cues. Adjusting the mesh with hearing is probably the best way to make sure its sitting good.

@restinpiecesrc5528 7 месяцев назад

Smaller scales run less weight and a lot less power generally, they don't need thicker oils, also smaller tolerances

@Shadows-RC 7 месяцев назад

@@restinpiecesrc5528Eh....not always. My E-Maxx needs thicker diff oil than my ARRMA Kraton 6s. Especially it's optional center differential. Why? Because there's only 2 spider gears in an E-Maxx, and they're smaller. 4-6s power on those really stresses them, so the thinner stuff is like water to an E-Maxx. 500,000 in an E-Maxx is like 20,000 in a Kraton 6s. I put one million in the E-Maxx's front and rear diffs, with earplug putty in the optional center one.

@GamezOfWar 4 месяца назад

@@Shadows-RCyour right, need at least 500k in that center

@ParcoUpchurch 7 месяцев назад

Anyone.... I have a M2C motor plate. Would this center diff mod work with their motor plate?

@puddlejumpernva 7 месяцев назад

Definitely not. The motor plate and mount for the center diff has completely different dimensions.

@Schmidt3850 6 месяцев назад

Do you know somebody at horizon hobby or something? According to the horizon hobby website the center diff and power module is on backorder for months.

@AJJAMStudios 6 месяцев назад

As soon as I saw the new parts I ordered two complete modules for upgrading. I can’t get them either now. 😎👍

@Schmidt3850 6 месяцев назад

@@AJJAMStudios l definitely should of done the same. All of the latest parts from Arma are all on backorder for months. Way to go horizon hobby

@stevenschear2922 5 месяцев назад

Put little piece of paper between gears when doing mesh

@AJJAMStudios 5 месяцев назад

That does work. 😎👍