[camacho94]

At what mileage should the Differential be serviced? 1998 4.3 2wd. Auto. What is best Gear oil to use? No issues , just want to keep up with maintenance. TIA

 

[MyWorkInProgress]

That’s should be in your owners manual, if you don’t have yours you can find pdf versions online.

 

[Gen210]

Rear end oil should be replaced 30,000-60,000 miles