Differential fluids

[TEO_P]

Hello,
First of all i would like to introduce myself.My name is Theodore and i am from Athens.I recently bought a Jeep Cherokee KJ 3.7L V6(MY05) with 55000 miles.i would like to change all the fluids in automatic transmission(42RLE) and differentials.I know what we use in the automatic transmission(42RLE),but i don't know what to use in the front and rear differential.Especially for the rear one,i don't know if my differential is limited slip or not and what type of fluid to use.
Thanks for your help.

 

[SteelHeadz]

Welcome to Jeepz. ATF+4 on the transmission and the transfer case. Since it's a 4WD, i would assume that your Jeep is equipped with a trac-loc. Add 4 ounces of the friction modifier on top of the differential fluid. I would use a synthetic 75/140 on the front and rear differentials.