I am Installing an aussie auto locker this weekend in my rear D35 and would like to know what oil i should run in the diff and what i can use to flush/ clean my diff and axle.

 

Brake parts cleaner to wash it out.
Factory suggested gear oil. Be sure you have correct feeler gauges to read the gap requirements, I had to get two sets.
" Dana 35 - 3.5 Pints (1.66L) SAE 75W-90
-Dana 44 - 4.0 Pints (1.89L) SAE 75W-90
-Chrysler 8.25 - 4.4 Pints (2.0L) SAE 75W-90
For towing and off-road use SAE 75-140 synthetic"

 

yep going to be towing and wheeling quite a bit this summer. I am looking to get a digital feeler gauge so i should be set. also installing the chromoly axle shafts when i do all of this.

 

This backyard mechanic says use kerosene. Works very well and is cheaper than brake cleaner. It washes off easily with a garden hose, although I wouldn't recommend THAT for the diff! The kero will eventually evaporate.

 

Hahaha yea maybe i will just pressure wash her out i have plenty of brake cleaner at home, just gotta pick up some grease and diff oil, might have to install them after the new mexico trip for time and pay reasons.

 

Hi CherokeeHoonigan,

We recommend:

80W-90 conventional gear oil for cold climates
85W-140 conventional gear oil for warm climates

Brake cleaner works well to clean the diff. There are some non toxic orange cleaners in the auto parts stores that work well too.

 

Thanks! glad to see you guys on the forums helping people out!