Clicking at Rear of Car After 4.10 Install

[Wnt2gofst]

When my install was done they had same issue on test drive, Took back apart reshimmed and all good.

Im running RP 75w90 as well. I also didnt launch hard or anything till i had about 500 miles on them changed my oil then. Now i beat the shit out of it with 4500-6K launches..

 

[IHVOCD]

The fluid is the RP 75w90.

I thought they took RP 75w140.

 

[QWKSNKE]

I thought they took RP 75w140.

yeah the rears from the factory had 140 oil and I had actually wondered if the 90 weight might have caused the issue we are hearing but based on what people are saying in this thread, apparently not

 

[Chrome61]

Have you thought about looking at the brake calipers or the abs sensors? Could be something that simple. Sometimes we get tunnel vision and overlook the real simple things.