Originally Posted by
OnRDPassion
On the diff which way is the spur gear suppose to go on? I put it so the flange is on the right side of the car so you have to put the first bearing on then spur gear and then the next large bearing but the spur gear wiggles a little bit on the diff once it is put together, but I do get diff action.
For the diff to work the diameter of the balls has to be bigger than the thickness of the spur gear, if not the diff washers would ride against the sides of the spur gear and you would get no diff action. The side to side wobble is perfectly normal and does not affect the gear mesh.