rear differential lube
#1
06-08-2002 | 11:26 PM
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Senior Member
Joined: Oct 1999
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From: Cincinnati, OH, USA
rear differential lube
Hey guys, I have a quick question. I'm thinking about changing out the rear differential fluid in my stock 02 Lightning and replacing it with Redline gear lube, but i'm torn. I was down there earlier today, and it says to use 75w140 gear lube, but the SVT supplement says to use 80w90 or something like that???
Which should I use? I imagine 75w140 would offer better protection and might have better limited slip qualities, but I understand it's less efficient than 80w90 which means less power reaches the ground. If I changed the rear gear lube, should I change it with what is reccommended in the SVT supplement, or what's written back there? This is really confusing
Which should I use? I imagine 75w140 would offer better protection and might have better limited slip qualities, but I understand it's less efficient than 80w90 which means less power reaches the ground. If I changed the rear gear lube, should I change it with what is reccommended in the SVT supplement, or what's written back there? This is really confusing
