Welcome to the Ford Mustang forum built for owners of the Mustang GT350, BOSS 302, GT500, and all other S550, S197, SN95, Fox Body and older Mustangs set up for open track days, road racing, and/or autocross. Join our forum, interact with others, share your build, and help us strengthen this community!
I was wondering what everyone is doing as far cooling for the IRS on non shelby's. Is it an issue on the performance pack cars. Toying with the idea of getting a 18 in the summer.
I read that BG 75W-140 diff fluid is supposed to resist heat for longer. I have it in my diff and have had no overheat issues but since the sessions I've run only lasted 20 minutes I'm not sure my experience is all that relevant. May be worth a try though since ya gotta have something in there anyway and it costs the same as the thinner stuff.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.