This is topic Rear end gear oil? in forum Tech Talk at Northern California Ford Owners  .


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Posted by slowback67 (Member # 6348) on :
 
I bought redline 75/90 gear oil for a 8inch with a limited slip...
Two things I need to know:
Will 75-90 work and should I run a friction mod. I just wanna make sure I don't mess up [patriot]
 
Posted by jaejae (Member # 7958) on :
 
i use 75-140 royal purple gear oil with a 4 oz of friction mod
 
Posted by Jawsgear (Member # 8080) on :
 
quote:
Originally posted by slowback67:
I bought redline 75/90 gear oil for a 8inch with a limited slip...
Two things I need to know:
Will 75-90 work and should I run a friction mod. I just wanna make sure I don't mess up [patriot]
You will be fine with that oil. If your carrier case has clutches then you will need to use the Ford friction modifier in addition to the oil.

Jeff
 




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