Hey my original 8" rear has been growling for a while now so I bought a prebuilt pumpkin from TJ whom lists on eBay and I read about on this forum. I live about 45 minutes from him so I drove to pick up a Trac-Lok with 3.25:1 ratio. I swapped it out last Saturday morning but to my surprise I get whining on deceleration. I called TJ and he said that it's fairly normal but if it is too bad he will exchange it for me. However I assume I'll have to redo the swapping out which wasn't fun. He said it may get better with more miles run. Did the brake in he suggested with the tight turns and I get no chatter but the whine is irritating to say the least. Have others experienced this whine and should I really expect it the get quieter? I put 80W90 gear oil, non-synthetic along with the additive he gave me. Would heavier weight oil help?