PML Ford Sterling 10½" Ring Gear, 12 Bolt, Straight Fins Differential Cover

Volume: 0.8 quarts over stock, approximately

Dimensions: Click here for dimensions. A separate window or tab will open.

This PML cover for the big Ford trucks and SUVs has a traditional straight fin design. 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.

We have some of these covers (without fill and level check holes) on special.

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.

PML offers a matching front end cover. Please call for information.

See a comparison of all PML Ford Sterling rear covers.

We have one of these covers in polish finish on special.

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.

Universal Transmission in New Mexico installed PML differential covers and transmission pan on this 2001 Ford F–350 4WD. The truck is lifted so the heavy duty PML covers with the black powder coat and shaved fins add a great look in addition to extra capacity.

From left to right: 2001 F350, PML rear cover for Ford Sterling 10.5 inch axles
Click on small image to view larger

Matching front differential cover is PML Part Number 6063.
Transmission pan is PML Part Number 9323.

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.