My differential is whining when I am boosting around 15 psi. Lower than 15 psi it works fine. On slow speed making turns, the differential is chattering like I am having a spool. I took it to 4x4 shop since they they are the only place in town that rebuild differential. They took it apart and said everything is fine - clutch, bearings etc. But they didn't measure lash and preload. So I got another differential from 88 turbo that's leaking the pinion seal. I changed the pinion seal that I bought at Autozone. The seal is made of plastic unlike the seal that was in the diferential which is 90% steel and 10% plastic. I really don't know where to get steel seals, probably dealer. I didn't measure the pinion preload since I don't have any inch pound torque wrench. Inch pound torquewrench that start at zero inch is really expensive. I figure I will know pinion preload when I take nut off. I started at 90 ft/lb since the nut is suppose to be torque at 134 ft/lb. When I took the nut off, it come out so easy. It must be torque less than 50 ft/lb. For 30mm nut, it must be higher than that. So I torque down the nut to 134 ft/lb. I reuse the nut. It is off 20 degree from previous stake. I think I put too much preload on the pinion. Its little bit harder to turn the differential now. My question is , what's will happen to differential when I didn't put the correct preload on the pinion?
Thanks
Thanks
