Gear Oil Question

[faucetfl]

Owner's manual says 75w-90 hypoid in the front diff, 90w hypoid in the rear. Can't find 90w anywhere, especially syn. It's a Florida truck so I don't have to worry about cold weather viscosity - can I just use 80w-90? Any suggestions?

Thanks - 94 4run V6 93K original miles

 

[4x4climber]

i run the lucas 80-90 hypoid safe gear oil. stuff works good, and its full syn. can get that suff anywhere..

 

[fourwd1]

You should be fine.

 

[SP Jon M3]

You'll be fine with 75w-90 or 80w-90. I've run RedLine 75w-90 in front diff, x-fer case, and rear diff. I currently run RedLine ShockProof (equals 75w-250) in the front and rear diffs, and 75w-90 in the x-fer case.

 

[faucetfl]

Thanks

Sounds like a plan - thanks for all your help