A buddy of mine bought some 3.90 rearend gears for his 89 gt. with the stock 8.8. Is there such a gear for the 8.8? We are having a lot of problems getting the pinion set right. Seems to be way to tight. I have done many 8.8 and never had this issue. He said the 3.90 for the 8.8 just came out. Any help? Thanks in advance!:shrug: