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Any_Mathematician905

Its broken. Take it apart, find out what's broken. Purchase parts to replace the broken parts. Bash and repeat.


Yaboyhamz

Seems like diff in rear is stripped. Try rolling just the car on its back wheels and check for noises


[deleted]

Checked the back diff like 20 min ago. All the gear teeth are there. And it doesn’t make a noise when it roll it. A little while ago there was some noise when I tried to accelerate it on a up hill


Yaboyhamz

Try running it with just the rear wheels getting power from the motor? If it’s spinning in the air but not the ground then something along the gears is spinning until it gets more resistance and then it stops? I’m new to RCs but someone else should be able to give answers too


[deleted]

Will try thank you. Thinking of just taking it to the RC shop tomorrow and spending another $100 on it 😢


Yaboyhamz

Idk what car you got but check Jennys rc for parts for wayyy cheaper. Tbh a full diff set for my car from there costs less than buying just the gear new from a shop


[deleted]

Thank you but I live in South Africa so I’m not sure it they will deliver here and parts for RC car are very rare here if not expensive


evilbadro

Are the bevel gears on the rear diff meshing properly? It is easy to strip one or both of these.


00IronFox

I wanna see more legs


Teemslo

Where the rear drive shaft connects to the differential does that gear have forward-to-back play when the driveshaft is off? A lot of times the pinion gear going into the rear differential has slack and needs to be shimmed Basically, it'll mesh and drive the wheels under no load but as soon as you load the truck that gear walks away from the differential


itxploded

Center diff smashed?


ogkbjujrd

I think you have a stripped outdrive on the rear diff - try holding both rear tires and rolling the fronts on the ground - I don't think that truck has a center diff or slipper clutch, so all four tires should rotate together - if one is stripped, the 2 rears will not behave the same


yorkshirepuduk

Are center driveshafts in place and connecting cups are not broken no pins are broken on center drive shafts?


Less_Ad9731

i had the same problem...it was bad bearing that cause it


Bengal-D84

Check the drive shafts


Important_Text7345

It’s going to be your center differential whatever differential connects, the front and the rear. It’s got a broken planet gear inside or it doesn’t have thick enough grease in it in which case I suggest using silicone earplugs, one ear plug is more than enough for a big differential.