This American Axle rear end differential cover
fits some 2003 and newer Dodge Ram 2500 and 3500 and it fits GM trucks
Silverado and Sierra 2500HD & 3500 with the Duramax or 8.1 engine.
The Dodge Ram 2500 and Ram 2500 may have a 10.5-inch or an 11.5-inch ring gear.
You might have an identification sticker in your glove box or on your driver's door that states which differential you have.
For the Chevy Silverado and GMC Sierra 2500HD & 3500 with Duramax
or 8.1 engines, PML offers a choice of two differential covers for the
This diff cover has oil fill, level check, and drain holes to
make it easy to follow the 15K oil change interval that Dodge specifies
for the AAM axles used in 2003 and newer Ram 2500 & 3500 trucks.
This cover also has an undrilled boss for a temperature sensor.
Please call to order if you would like the boss drilled and tapped.
PML also makes a cover for the front differential on Dodge Ram trucks.