Rear axle fluid for Alum.44

[Triple-XJ]

I'm going to drain the rear axle fluid today in my 00 WJ. It has an Aluminum Dana-44 and not sure about TRAC LOK or VARI LOK. I may pick up some friction modifier just in case.

What weight and brand fluid should I use?

I was thinking SAE 75-140 synth.

Any thoughts?

[aszaunmi]

If you are going to use Synth just use Royal Purple in the weight you wish. No need to add friction modifier. It has everything you need if you have a limited slip or not. I have been using it for years in many different vehicles. I currently use it in my 350Z and my Xj that has ARB's front and back. I did use it with several limited slips that I have had in chevy and dodge trucks too.

Great stuff,

[Triple-XJ]

If you are going to use Synth just use Royal Purple in the weight you wish. No need to add friction modifier. It has everything you need if you have a limited slip or not. I have been using it for years in many different vehicles. I currently use it in my 350Z and my Xj that has ARB's front and back. I did use it with several limited slips that I have had in chevy and dodge trucks too.

Great stuff,

Where do you get that R-P, I'm here on the central west side and I get all my auto stuff from Car Quest, think they carry it?

[Tom Schenk]

Geno, this is per http://wjjeeps.com/

Dana 44 (226RBA)

The Rear Beam Aluminum axle housing has a cast aluminum center differential housing with axle shaft tubes extending from either side. The tubes are pressed into the differential housing. The axles are semi-floating supported by the axle shaft and bearings.
4.75 pts. (76 +/- 1 oz)

Bolt torque:
Fill Plug: 25 Ft. Lbs.
Cover Bolts: 30 Ft. Lbs.

Axle Ratio:
3.55, 3.73

Axle shaft:
30-spline, 1.31" thick

Thermally stable SAE 80W-90 gear lube
Mopar® P/N 04874468

For heavy-duty or trailer tow use:
SAE 75W-140 synthetic
Mopar® P/N 04874469

NOTE: Trac-lok and Vari-lok equipped axles require 4 ounces of Limited Slip Additive be added to the lubricant.

[my66coupe]

If you have a hitch, or do any towing.. 75-140 synthetic is the way to go. If not...a 80-90 or equivalent synthetic should be ok.

Mike