PML Ford Sterling 10¼" or 10½" Ring Gear 12 Bolt, Patterned Fins Differential Cover

Volume: 0.8 quarts over stock, approximately

Dimensions: Click here for dimensions.

This PML cover for the big Ford trucks and SUVs has a patterned fin for a custom look. It adds capacity to help lower the differential fluid temperature. Thick walls and gasket flanges add strength to the differential housing and provide a uniform clamping force on the gasket surface for a secure seal.

This rear differential cover fits the 10¼ inch or 10½ inch Sterling rear end found on:

• Ford F-250, 1989 and newer
• Ford F-350 single rear wheel, 1989 and newer (if you have a Dually, see our Dana 80 cover)
• Ford Excursion

PML makes three different rear end covers for the Ford Sterling 10¼ and 10½ inch ring gear, 12 bolt differentials. They have the same prices but different fin patterns, shapes, sizes and features.

This PML cover has holes for drain and fill. A boss on side optionally can be machined for a temperature sensor for an additional cost. Call to order machining and let us know your sensor thread size.

The level check hole for this differential is provided by Ford and is located on the driveshaft side of the differential housing.

For 4WD vehicles, if you would like front cover with a matching fin pattern, please see our part numbers 7086 and 10816.

See a comparison of all PML Ford Sterling rear covers.

Click on image to view larger.

Click on image to view larger.

These images show this PML differential cover compared to the stock cover.

Picture of patterned fin differential cover (part number 9513) on the Kelderman Screamin' Diesel project truck, a 2004 Harley–Davidson Super Duty F–350 pickup.

Click here for an article by The Diesel Garage showing the installation of patterned fin front and rear covers (part numbers 10816 and 10737) on an F–250. Image shows RTV on the gasket surface.

Richard's F–250 has a custom paint job on the body and he wanted a custom differential cover to match. Richard selected part number 10816 and matching front cover 10737 and did a custom powder coat in shiny red.

To give your pickup a custom look, buy an as-cast differential cover. We irridite our covers so on arrival they are clean and ready to install or to let you be creative as Richard did with his.

For a larger picture, please click one of the above images. A separate window will open showing a bigger picture. (The larger pictures take a minute to display.)

• 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

Learn more about finishes and construction of PML parts.