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Front Differential Cover, 12 Bolt
For 2013 and Newer Ram 3500
and 2014 and Newer Ram 2500

PML Part Number 11136

PML Front 2500/3500 Differential Cover For Ram, view 1
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PML Front 2500/3500 Differential Cover For Ram, black powder coated
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PML AAM Dodge 9¼ Front Diff Cover, polished
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As-cast finish
$195.00
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Black powder coating
$245.00
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Polished finish
$310.00
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Volume: a little over stock (about 4 oz)

Dimensions: Click here for dimensions. Always check your truck to verify differential and clearance. Check for clearance with wheels straight, left and right and at limits of suspension.

PML designed this cover as a bolt on replacement for:

  • 2014 and newer Ram 2500
  • 2013 and newer RAM 3500 trucks

Ram changed to this 12 bolt American Axle 9 1/4 inch 235mm front to improve the durability, steering and control, according to FourWheeler.com.

This PML cover is heavy duty, sand cast aluminum. Fins on the lower part where the fluid collects aid in heat dissipation.

Because of many clearance issues with steering, u-bolts, and suspension, PML designed a cover as close to the shape and size of the stock cover as possible.

Configurations vary so always check your truck to make sure you have clearance for any larger aftermarket cover. Trucks with the factory air ride suspension may have less clearance.

There is a Safety Recall Notice for the front suspension on Ram 2500 and 3500 trucks. After any modification, the installer or mechanic must verify clearance. See also this thread on the Turbo Diesel Register Forum.

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

What Ships With the Cover?

What is in the package with the 12 bolt Ram front cover

PML ships new mounting bolts, fill hole plug and a magnetic drain plug with each cover.

Image at right shows the polish finish cover and what is in the box. Except for the cover, the content is the same for all finishes. Click on image to view larger.

Rear Differential Cover

PML makes a matching rear end cover for these Ram trucks. Please see the AAM 11.5" ring gear, 14 bolt cover (click here) or the AAM 10.5" ring gear, 14 bolt cover (click here).

Gasket

PML recommends RTV gasket material. RTV is a type of silicon rubber and it comes in a tube. There are several brands, such as Permatex, and these are readily available at automotive stores like Pep Boys and AutoZone.

Some people use the reusable factory gasket. Please make sure the gasket is clean and free of any nicks. If there is a nick in the gasket, that is where you'll get a leak.

Optional Temperature Sending Unit

This part has an undrilled boss for a temperature sensor. The option to have PML drill and tap the boss will need to be ordered over the phone, not on-line, and there is an additional charge of $45 per hole.

Boss is on the passenger side of the cover.

Inside

PML differential cover for new Ram trucks, inside

This shows the inside of the PML cover. The shape generally follows the shape of the stock cover.

The fill/level check hole is at the same location on the PML cover as on the stock cover.

Click on image to view larger in a separate tab or window.

PML Differential Cover Compared to Stock

PML Differential Cover Part Number 11136 height compared to stock  PML Differential Cover Part Number 11136, compared to stock
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These images show this PML differential cover compared to the stock cover.

Installations

2017 Ram 3500 Diesel

Nick has a 2017 3500 Dodge Ram 4 wheel drive, single wheel rear axle truck, and he purchased PML front and rear differential covers for it. He reported: "It was an easy install with no problems fits perfect."

2017 Ram 3500 with PML differential covers   PML 12 bolt front differential cover on 2017 Ram 3500 diesel   PML 14 bolt rear differential cover on 2017 Ram 3500 diesel
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2017 Ram 2500 Laramie 4x4 Diesel

Marion purchased PML front and rear covers for his 2017 Ram 2500HD 6.7 L Cummins Laramie. Our thanks to him for sharing pictures and comments from his installation.

He was not able to install the PML rear differential cover with the sway bar in place. He unscrewed four bolts and the sway bar lowered. He purchased this rear cover in the bare metal as-cast finish and found that touching it with oily hands made it look dirty quickly. So he painted the rear cover all black and purchased the front cover in the PML black powder coat finish. For fluid, Marion added 4 1/2 quarts of 75W 90 Synthetic Anti-Slippery Fluid for the rear.

He loves the look and the easiness of replacing the fluid wtih the PML covers.

2017 Ram 2500 Laramie with PML differential covers installed on rear and front axles   2017 Ram 2500 Laramie with PML rear differential cover installed   2017 Ram 2500 Laramie with PML front differential cover installed
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2014 Ram 3500

Corey installed his cover and matching PML rear cover, Part Number 10361, on his 2014 Ram 3500 Tradesman Crew Cab Short Bed, SRW, 6.7 Diesel, G5 truck. On CumminsForum.com, he posted:

[I]nstalled my PML covers today. Probably should have just put the rear on and forgone the front one but they look good together. The front was a tad harder, took a allen wrench and ground about half an inch off of the short end and it would fit under the front bar that goes across the front top of the diff cover ( had to come in from the top). Other then that it was pretty painless.

Both are thick guys, thought quality was really good.

Our thanks to Corey for sharing his comments and pictures.

2014 Ram 3500 with PML differential cover, front axle   Thick flange on PML cover   PML rear AAM 11.8 differential cover on 2014 Ram 3500
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2014 Ram 2500

Andrew Lowe installed this cover on his 2014 Project Bloodhound Ram 2500 4x4 6.7 Turbo Diesel. He also installed PML RFE transmission pan, part number 10304 and PML rear cover, part number 10361. Andrew reported there was plenty of room in the front for the larger PML cover.

The images below show the stock cover, this PML cover in the cast finish installed on the truck before it was customized, this PML cover in custom red powder coat after the truck is lifted.

Stock 12 bolt Dodge front cover, 2014 Ram 2500   PML 12 bolt Dodge front cover, 2014 Ram 2500   PML 12 bolt Dodge front cover, 2014 Ram 2500, lifted, custom red powder coat
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Our thanks to Andrew for including PML on his project.

2014 Ram 3500

Kelderman Manufacturing installed this cover on their 2014 Ram 3500. To show it off, they polished a cast finish cover. Truck is lifted and modified.

2014 Ram 3500 with PML front differential cover   2014 Ram 3500 with PML front differential cover
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Our thanks to Kelderman for selecting PML covers and pans for their trucks.

2013 Ram 3500

Gino installed the PML front differential cover on his 2013 Ram 3500 6.7. His truck has the radial suspension. He reported that the cover fit fine with plenty of clearance. Our thanks to Gino for choosing PML and sending us pictures.

2013 Ram 3500   Stock 12 bolt Dodge front cover, 2013 Ram 3500   Stock 12 bolt Dodge front cover, side view, 2013 Ram 3500

PML 12 bolt front cover, 2013 Ram 3500, passenger side view with fill hole   PML 12 bolt front cover, 2013 Ram 3500   PML 12 bolt front cover, 2013 Ram 3500, side view
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PML Differential Cover on Trucks With Factory Air Ride Suspension

Troy has a 2015 Ram 3500 SRW Crew Cab 4x4 6.7 AS69RC transmission with the factory air ride suspension. He installed this PML front cover and matching rear cover, part number 10361. After several months, he reported that the cover fits fine and he had no clearance issues.

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.)

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

Learn more about finishes and construction of PML parts.