i always thought the clunk,whine,leak were all related --i was wrong about that i guess--i did always believe tthat the drivetrain had problems and gm adding the torque bar was my vindication--you just don't do major changes like that to fix " normal " problems--i am happy gm is finally doing something--i am disgusted tho that gm continues to tell people that clunking and whining is normal--my new 07 must be abnormal then because it doesn't do either--i think the main reason i won my lemon case was because gm tried to tell the arbitrater that a leaking diff was normal.......