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
gmc6000's avatar
gmc6000
Explorer
Apr 28, 2016
DownTheAvenue wrote:
djgodden wrote:
I'm getting ready to put a new larger differential cover onto my TV differential


WHY?

You think you know more than the engineers who designed and built your truck? leave it alone and follow the manufacturers requirements regarding type of fluids and change intervals.


Because most engineers are brainless. They are book smart but street stupid.

Its not rocket science to figure out a larger finned cover will dissipate heat better.

About Travel Trailer Group

44,052 PostsLatest Activity: Nov 04, 2025