Differential Gear Lube/oil

[Fdasch]

This is going to be the first time changing the differential fluid on recently purchased 2001 TJ with Dana 30 front and Dana 44 with trac-loc on the rear.

What brand recommendations do you have. And do I need to add the limited slip additive?

 

[Rubiconned]

I use this because George used it in the Millenium Falcon. Additive not required for True-Trac. I don't know about Trac-Loc.

 

[JKP]

If the lube you buy already has LS additive, like the Valvoline below, you are probably good to go. If you get lube without it, you will need to add some.