Diff Service
Finally getting around to changing the diff lubricants - I have a 2001 with Quadra-Drive. What would be the best choice lubricant?
Thermally stable SAE 80W-90 gear lube
or
SAE 75W-140 Synthetic
Best Brand - i was thinking Royal Purple?
I will get the FM from Jeep.
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Ed
Just Eough Essential Parts
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