Forum Discussion

djgodden's avatar
djgodden
Explorer
Apr 28, 2016

Differential fluid thoughts/recommendations...

I'm getting ready to put a new larger differential cover onto my TV differential (2012 4x4 2500 Ram Laramie Longhorn w/6.7 Cummins). The standard fluid is 75W-90 for rear and ATF+4 for front. Should...
Tow Vehicles
lawnspecialties's avatar
lawnspecialties
Explorer
Apr 29, 2016
Is there any reason why switching to 75W-140 would not be advised versus 75W-90?

I'm not wondering if its necessary. Just if its not advisable.

About Travel Trailer Group

44,056 PostsLatest Activity: Jan 01, 2026