Posi Gear Oil Recommendations
#1
Posi Gear Oil Recommendations
Changing out the diff cover to a W27 repro. Service manual says to use special limited slip gear oil but doesn't say what weight to use. I have some Lucas 80W-90 that says it's can be used for L.S.diffs. without the use of special additives. I don't want to end up with a bunch of leaky seals so what do you guys recommend.
#5
Always use the GM additive in a clutch style posi unit. One thing to look for on gear oil is the GL rating. The higher GL rating,the better. The GL rating is basically the shock value of the lube. Probably won't make a lot of difference in a street car but every little bits helps.
#6
Always use the GM additive in a clutch style posi unit. One thing to look for on gear oil is the GL rating. The higher GL rating,the better. The GL rating is basically the shock value of the lube. Probably won't make a lot of difference in a street car but every little bits helps.
The Lucas gear oil I used says "exceeds API GL-4 and GL-5. I hope that's good.
#7
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sammicurr86
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May 20th, 2018 08:52 AM