For most Jeep models, GL-5 gear lube is recommended, with specific viscosities like 75W-90 or 80W-90 for normal use, and heavier options like 85W-140 for severe conditions. Always check your vehicle's manual for the exact specifications based on your model and axle type.
I put that in my 21 and no problems.. might opt for amsoil next time but hard to say anything bad about Lucas.. it is the correct specs if that’s what you’re asking
Thanks
A post on here help me decide what might be wrong with it.
Pulling out of driveways, it had a sound from the differential.
No metal on the plug.