10303-2B | GM 9.5 Inch 14 Bolt Rear Differential Cover

This PML cover fits the GM 9½" ring gear, 14 bolt rear differential. PML makes three different covers for the many GMC and Chevrolet trucks, vans and SUVs with this differential.

PML designed this cover specifically for vehicles needing clearance for pan hard and sway bars and still want the benefits of an aftermarket heavy duty cover. For example:

Hummer H2, 2003 to 2009
Trailblazer SS, 2006 to 2009
SSR 6 speed, 2005 to 2006
Some Cadillac SUVs
Vehicle configurations vary so always check your configuration and clearance before ordering.

If you do not have an H2, Trailblazer SS or SSR and wish to order this cover, you will need to contact us and let us know what bolt size you have. Please see the Bolt Information section on this page: GM straight fin cover. All the Hummer H2, Trailblazer SS, and SSR vehicles we have seen have metric M8–1.25x21mm stock bolts.

PML Differential Cover Features:
Increased oil capacity for cooler temperatures
Sand-cast aluminum with raised fins
3/16-inch thick wall construction to add strength to differential housing
3/8-inch thick gasket flange will not bend when bolts are tightened
Machined gasket surface for a secure seal using RTV or factory reusable gasket
Oil changes without removing the cover
All hardware provided, including magnetic drain plug