Red Line Diff and Transfer Case Oils - a Good Alternative to OEM

4R Friends,

If you are needing to change your differential and transfer case oils, I recommend the oils pictured below from Red Line. They meet the specifications the 5th Gen 4R requires. I bought a gallon of each directly from Red Line and shipping was free.

A very good oil that is less expensive than the OEM Oil.

 

Exactly what is in mine. It will be replaced with these again once the weather warms up.

 

Very good choice. You´ll need 4.x Lt for the differentials (Front and rear), did you get the extra quart of 75W-85?

 

These are my go-to fluids for differentials and transfer case. Have the next changeover on the storage shelf in waiting. About 10K to go.

 

This is what I use.

 

I bought two gallons.