Quote:
Originally Posted by micah_675
Hey turkey I just filled the diff about 3 weeks ago with RP 75W-140. I also replaced the "lifetime" fill transmission fluid with the syncromax fluid from RP. Moving the shifter is MUCH smoother than the stock crap in it.... (which was cloudy as all hell, not a good sign in oil)
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Royal purple rear diff fluid is great stuff, but I think we have to get 75W 90 though, not 75W 140. Their manual trans fluid is good too. Enjoy the ride!