Product Overview

Volume: 0.75 quarts over stock

Dimensions: Click here for dimensions.

The PML cover is 1 inch deeper than the 2003 stock cover.

Number of Bolts: 14

This PML differential cover fits the American Axle Manufacturing (AAM) rear axle with 11.5 inch (292mm) or 11.8 inch (300mm) ring gear found on Ram heavy duty trucks.

Benefits:

Extra capacity
Open interior and shape similar to stock cover
Drain, oil fill, and level check holes to make it easy to follow the 15K oil change interval
Magnetic drain plug and new mounting hardware included
Finned for heat dissipation
Heavy duty, sand cast aluminum construction
Machined gasket flange for a secure seal
Option for temperature sensor machining

Applications:

PML designed this cover for 2003 to 2018 Ram diesel trucks with the AAM 11.5 or 11.8 inch ring gear rear differential. Trucks which may be able to use this cover include:

Ram 2500, 2003 to 2013
Ram 3500, 2003 to 2018 (maybe some 2019 and newer?)
Some GM/Chevy Heavy Duty trucks

Always check your vehicle to verify differential and clearance. Configurations vary. See notes below.

2019 and newer trucks: The cover for most 2019 and newer trucks is similar but NOT interchangeable. See PML Part Number 11176. Check OEM cover shape and Mopar gasket part number.

Ram 2500, 2003 to 2013: Most gas engine trucks and a some diesel engine trucks have an AAM 10.5 differential, which is PML Part Number 10302. Compare the shape of the OEM covers to determine which your truck has.

Trucks With Brackets, Sway Bars, and Pan Hard Bars (2014 to 2018 Ram 2500): For trucks with brackets holding the brake line, sway bars or pan hard bars, see PML Part Number 11147. This is most all 2014 to 2018 Ram 2500 and Ram 3500 trucks with optional air bag leveling.

Silverado or Sierra 2500HD 8.1 or diesel, 3500 or 3500HD with this AAM 11.5 rear: If you choose to use this cover, part number 10361, you have to bend the brake bracket located at the top of the cover. PML part number 9511 fits the same differential and accommodates the brake bracket.

There are several gear ratios for this differential, such as 3.42 and 3.73. The ratio does not change the ring gear size, 11.5 or 11.8 inches.

Drain, Oil Fill, Level Check and Hardware

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This differential 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.

PML includes plugs, mounting bolts and a magnetic drain plug.

Optional Machining for Temperature Sending Unit

This cover has an undrilled boss below the level check hole. Optionally, PML drill and tap this boss with a 1/8 NPT hole for an aftermarket temperature sending unit.

Front Cover for 4WD Trucks

PML also makes a cover for the front differentials on Dodge Ram trucks. On our front covers, PML keeps the profile close that of the stock cover to avoid interference with the steering, frame or suspension.

For the 14 bolt front cover: see PML's AAM 9.25" 14 bolt front differential cover

For the 12 bolt front cover (2013/2014 and newer trucks):, see PML's 12 bolt front differential cover