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GM 10½" Ring Gear, 14 Bolt
Differential Cover

P/N 9369

PML GM 10½ Diff Cover, as-cast PML GM 10½ Diff Cover, black powder coat PML GM 10½ Diff Cover, polished
As-cast finish
$190.00
3/8-in bolts: Go To Cart
8mm bolts: Go To Cart
Black powder coating
$235.00
3/8-in bolts: Go To Cart
8mm bolts: Go To Cart
Polished finish
$300.00
3/8-in bolts:Go To Cart
8mm bolts:Go To Cart

This differential cover fits heavy duty trucks and vans such as Chevy and GMC 2500 and 3500.

Note: This cover may not fit late model vehicles with a towing package.

Typical applications include the following. Be aware that for each model and year there may be more than one rear axle possible so please check before ordering. See also GM 14 bolt 9½ and AAM 14 bolt 11½.

¾ Ton Truck, 1973 to Current

  • C20 & K20
  • C2500 & K2500
  • Silverado 2500 & 2500HD
  • Sierra 2500 & 2500HD

1 Ton Truck, 1973 to Current

  • C30 & K30
  • C3500 & K3500
  • Silverado 3500 & Sierra 3500

¾Ton Van, 1973 to Current:

  • Vandura
  • Express
  • Savana
  • G20
  • G2500

This 14 bolt 10 1/2-inch differential cover uses 12 of the 14 bolts. The bolt hole at the bottom was removed because the drain boss is best located there. At the top of the cover another bolt hole was removed. The flange is 3/8-inch thick and blanchard ground to be flat and smooth.We have sold many of these and have never had a problem with leaking. The flange is very strong and the 2 bolts left out are not missed.

Please check and order the correct mounting bolt thread diameter. These differentials were made with 3/8-inch (.375 inch) and 8mm (.315 inch) bolts. PML offers the cover in both versions: P/N 9369-1 is for 3/8-inch bolts and P/N 9369-2 is for 8mm bolts.

Volume: 1.0 qt. over stock

Click here for dimensions.

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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