Hey guys, going to change my front and rear differential oil.


Problem is, the rear differential has 2 different types of oil - one for a differential with limited slip and one without.


My options codes do not show a limited slip, but am just wondering if a limited slip is already a standard feature before I go out and buy the wrong oil


Does anyone know? Thanks in advance!

 

Just changed mine on a 2011 CTT at 157K used Mobil 1 104361 75W-90 Synthetic Gear the oil was dark but no metal flakes on the drain plug. No additive needed.
If do your transfer case too only hand tighten the plugs and use thread sealant.

 

Limited slip is for those with PTV+ option.
If you have PTV+ you can light up the third "off-road" mode light.