big rock

Hello. Just got a awsome 3s Big Rock home, but i will just check the Diff - what oile should i put in?

If this is annoying and not what this forum is for please let me know! But thought I’d share a fun and chilly winter evening bash. https://www.amazon.com/photos/shared/yQzoOFHtQymQuhct-FtYbg.GbbCw_V7-RrWJLcGEOBU3A

Hey Arrma Fam, I took my Big Rock diffs apart just to change the diff lube. I go to put the 4 small gears back in. As I try to put a third one in, they will not spin. It gets locked up. Can’t figure it out for the life of me! Spent so much time trying to figure it out and looking at videos...

Hello All, I’m new to the hobby and I just replaced my servo on the Big Rock with a 25kg servo and also the hot racing servo saver. I have heard you shouldn’t move your wheels by hand when the truck is off. Besides that though… my wheels are very hard to move when the truck is off. If I have to...

I have a stock Big Rock V3. It's been great so far, but I want to improve it's handling in rough/rocky terrain. I bash with my friend and his Mojave and I'm always amazed at how well it holds a straight line over rocky terrain...I know it's bigger, heavier and badasser, but wondering how I can...

Hey guys I’m having a issue with my big rock, when I try to drive it makes kinda a high pitch sound like it’s just the motor spinning. It’s not the spur gear, it’s not striped and the mesh seems fine. The pinion gear is fine also. To me the diffs seem fine. I have a video on it and please watch...

Hello everyone, I've been doing some research surrounding some motor upgrades for the Big Rock, and I've landed on a TP Power 4050 3080kv. I'll be running 4s with it. My only question is would the stock motor mount plate be able to use M4 screws? This is the only type of screw that the 4050...

Hey guys I want to know if I should upgrade me spur gear to a meal one and if I should upgrade any other gears to metal? I’m planning to launch my big rock V3. Thanks

Can I use a 4S lipo in my big rock or is it 3S lipo only. I’m just askig because I don’t want to buy a 4S lipo and it now work.

Hello, which oil are recommended for Hot Racing shocks to big rock? 40wt?

Nero with hpi gigante gt body

I think my stock servo is kaputt. When the car is off I can turn the front wheels through the full range of motion without issue. I can turn the car on (but leave the transmitter off) and same thing: full motion / no issues. But as soon as the transmitter binds to the receiver, the steering...

I upgraded my arm a big rock to 4s and bought the recommended upgraded out drive hd shafts and I completely demolished one my second time running. I was hoping there was an all steel version out there that can hold up under the strain. Can anyone point me in the right direction? I’ve heard bad...

Do i need a special motor mount? will the battery fit? Some people even said that u should change the diffs and driveshafts, but is that really necessary?

Hello everyone, I was thinking about buying a 1/10 scale clear Hellcat body for my Big Rock V3. I think it would look like a bad a$$ off road muscle car. I am planning on spray painting the body with black bed liner also. I will post I picture to this thread once it’s done! Let me know what...

It hasnt been that long ago that I finished painting and fitting a Notorious body to my Big Rock, and I am still trying to be patient and not use it until I shoe goo it due to time into it. I had a JConcepts “Creep” body (meant for crawlers) that I had picked up for a Losi LMT roller project...

Arrma Typhon Big Rock flipping the curb

So I bought a used v2 Big Rock and I'm pulling apart the gear box only to find that the bearing on the outside of the slipper clutch assembly is missing. Is this important to have on there? I've run one time and stripped a turnbuckle on one of the rear tires that I've since replaced and now...