Gear oil weight?


I'm getting ready to install diff covers. What type of weight do you guys use? I'm reading 75-90? 75-140?

I live in Albuquerque, NM so it gets warm here. I don't tow. Vehicle is a 2020 JTR on 38s with stock gearing. See's mid to light off road use.

Also, I believe I don't need to add limited slip additive.



Resident Smartass
Factory gears factory weight oil. Aftermarket gears is 85-140 though I believe. Thicker oil won’t hurt stock gears though.
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