GPM motor cradle not meshing right?
 

Ok, well I ordered a GPM motor cradle for the Evo, installed it and put in the 9 tooth gearing and that meshes properly. But were the main gear mesh's with the Diff, it is not meshing right it is skipping teeth and I can't move the car when it is sitting on the ground.

Any ideas on how too fix it? Or do I need to order a GPM rear gearbox cover?

Also the screws are all in nice and snug and it runs while being held in the air, but when its on the ground it grinds.

Are you still using bushings? Bushings are very loose and allow it to move all over the place like a rag doll.

Well that could be it. Since I don't have bearings yet. Also I fried my 2x2 stacked fets so im not sure how that happened yet. But for now I switched back to the stock motor cradle.

Make sure your main gear is not worn out and that all bearings/bushings are seated correctly. I never had that problem with mine but I always put in metal bearings when I upgrade the motor cradle.