groho

How much friction mod did they add? In oz's. You prob need another oz or two.

Zombiebrew

So after a few tight laps in a big parking lot.....THE NOISE IS GONE!!!! I can't believe this was a $7 fix!!!! NEver in a million years would i have guessed. And that's good since if i had to drop a lot of money on a new rear end my wife would have been first like this then like this insead she was somewhere like this Thanks for the help all!!!!!

Nyke

Yup the friction modifier is a small but very important additive. Since the differential had metal filings it was probably eating itself up slowly. By putting fresh oil and the friction modifier it probably took some time to bed in properly.