differential oil

[nc bogger]

When I rebuild my rear factory "anti-slip" diff I use use one extra clutch and take out one spacer on each side so it locks up better offroad. I use royal purple 75-140. It keeps my temps way lower and after talking on the phone with them a while back no friction modifier is needed with their gear oil.

 

[ouch1011]

You don't need two friction modifiers. Just one or the other.

 

[scippy]

I picked up basically what the book calls for.....75w90 Amsoil severe gear & the Mopar slip additive.
I'll be far under the average miles in driving a year and towing will be a couple of 500 mile round trips
on average grade highways...........did buy a mild tuner (Edge ez) and new Bosch RV2-75 Injectors.