i did do all my measurement with old bearings that were reamed out so they could be slipped on and off to get the right shim #`s on the pinion, then when all the measurements were good i pressed the new bearings in place, the pinion load just came out to be 90lbs , i worked my way up to that # starting at 60lbs which was 0 load and no end play. i am concerned because most gear replacements i have done were stock gears 3.23 to 4.88 chyslers rearends, the last one i done was a 8.8 mustang that i help a fellow racer with they were 4.10 gears and everything was by the book and the noise never left the rearend but he has been racing it for 3yrs now,so i am just wondering is the engagement pattern between the ring and pinion can be moved off center to try and lessen the noise, i have go and check it out and test drive the car for myself ,if anyboby has any other suggestion firer away , thanks