lash or back lash is the amount of free play between ring and pinion hold the pinion still, set the ring against one side of the pinion , set dial ind. to zero. now move the ring till it makes cotact against other side of pinion that is your lash. you need it for heat expansion
Iwork on acrs for a living and dont do rear end to many ways to screw up, find a drive line shop and ask if you can watch while they set it up, every time you move one yhing it changes a angle to something else
