PML AAM 11.5 14 Bolt For Ram 2500 2014 to 2018 Differential Cover

Description

Volume: about 1/2 quart over stock at factory fill level

Dimensions: Click here for dimensions.

About 3/8 inch deeper than stock.

Number of Bolts: 14

Benefits:

Designed for 2014 to 2018 Ram 2500, 2019 and newer models also see PML Part Number 11176
Clears sway and pan hard bars for the coil suspension, no modifications needed
Two level check holes, one at the stock cover fill level line and one at stock fill level hole
Additional capacity: approximately 1/2 quart over stock at factory fill level
Fins for dissipating heat from fluid
Fill using hole on top or on side
Drain on bottom for easy servicing
Boss (unmachined) if needed for temperature sending unit
Cover comes with new mounting bolts, fill plugs, and magnetic drain plug, all included
Heavy duty sand cast aluminum construction

Our thanks to those who have provided information and pictures of their trucks and worked with us during development of this cover.

Applications

PML designed this cover for 2014 to 2018 Ram 2500 trucks with the AAM 11.5 or 11.8 inch ring gear rear differential. Trucks which may be able to use this cover include:

2014 to 2018 Ram 2500
2003 to 2018 Ram 3500, especially those with optional air bag leveling
2003 to 2013 Ram 2500
Some GM/Chevy Heavy Duty traucks

PML made this cover to clear sway bars, track bars, and pan hard bars and work with brake line brackets. This cover fits the same differentials as PML part number 10361, which has more capacity but does not work with brake brackets, sway bars, track bars, or pan hard bars.

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: For trucks with brackets holding the brake line, sway bars or pan hard bars, such as 2014 to 2018 Ram 2500 and Ram 3500 trucks with optional air bag leveling, this cover has been installed on many similar vehicles with factory configurations. Verify your clearances.

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.

Installations

Our thanks to our customers for their feedback, pictures, and videos:

2004 18,000 lbs. GVWR Workhorse Chassis

2014 Ram 2500 4x4 6.7
2014 Ram 2500 4x4 6.7, Video of Installation
2014 Ram 2500 4x4 6.7, No Air Suspension Upgrade
2015 Ram 2500HD 4x4 6.4L Hemi, Coil Suspension
2016 Ram 2500 4x4 6.7L Diesel
2017 Ram 2500 Laramie 4x4 Diesel
2017 Power Wagon 6.4L Hemi
2017 Power Wagon 6.4L Hemi
2017 Ram 2500 6.7L Diesel
2018 Ram 2500 Cummins Diesel 4x4

2004 18,000 lbs. Workhorse Chassis

Dan installed this PML differential cover on his 2004 Airstream Motorhome built on a 18,000 lbs. GVWR Workhorse Chassis. Dan is very happy with the cover and the installation went smoothly.

Airstream mounted on a 2004 Workhorse Chassis Stock rear differential cover for American Axle 14 bolt 11.5 sway bar dropped for installation PML cover level check and fill hole PML cover installed, clears sway bar
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2014 Ram 2500 4x4 6.7

Chris installed both PML front and rear differential covers on on his 2014 Ram 2500 truck with the coil suspension.

Images show (from left to right):
2014 Ram 2500, PML front differential cover, stock rear differential cover, PML rear differential cover installed

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2014 Ram 2500 4x4 6.7, Video of Installation

CJC Offroad installed this cover on their 2014 Ram 2500 4x4 and shot a video of the installation:

CJC installed a prototype cover (first design). The current design has a bit more clearance and a pad for the brake line bracket.

2014 Ram 2500 4x4 6.7, No Air Suspension Upgrade

Brian installed this cover on his 2014 Ram 2500HD 4x4 6.7L with coil suspension. His truck does not have the air suspension, which is an optional upgrade. Brian reported that "the rear cover install went pretty easy." He also said that "The only downside is the cover looks so nice, it brings attention to how weathered my rear axle looks. I'll have to repaint it in the spring.".

2014 Ram 2500 6.7 4x4 Stock Rear Differential Cover 2014 Ram 2500 6.7 4x4 PML Rear Differential Cover Installed 2014 Ram 2500 6.7 4x4 PML Rear Differential Cover Installation Finished
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2015 Ram 2500HD 4x4 6.4L Hemi, Coil Suspension

Jimmy installed our prototype cover on his 2015 Ram 2500HD 4x4 6.4L, which he uses for towing. He dropped the sway bar to make swapping the covers easier. Our thanks to Jimmy for his great write-up about his installation and pictures.

Read Jimmy's: Ram 2500 Installation Notes

2015 Ram 2500 6.4 4x4 Sway Bar Dropped And Cover Removed PML Differential Cover Installed on 2015 Ram 2500
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2016 Ram 2500 4x4 6.7L Diesel

Ruben installed this cover on his 2016 Ram 2500HD 4x4 with the 6.7 Cummins diesel. He loosened both sides of the sway bar with a 15mm wrench to make swapping the covers easier. The stock bolts needed a 13mm wrench. He decided to fill to the bottom of the lower hole, which is the same location as the fill line on the stock cover. He added 4½ quarts, which is exactly ½ quart over his stock capacity of 4 quarts.

Click on image to view larger.

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.

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2017 Powerwagon 6.4L Hemi

Sal installed PML front and rear covers on his 2017 Power Wagon 2500 4x4 Hemi. He bought the as-cast finish covers then painted them. He also purchased and installed ARP bolts. He is very happy with the fit and appearance.

PML front cover, second picture, is Part Number 11136.

2017 Ram 2500 Powerwagon 6.4L Hemi, 4x4 PML front differential cover, part number 11136, installed on 2017 Powerwagon Stock rear differential cover on a 2017 Powerwagon PML rear differential cover, custom paint, ARP bolts, on a 2017 Powerwagon
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2017 Powerwagon 6.4L Hemi

Bill installed PML front and rear covers on his 2017 Power Wagon 2500 4x4 6.4L Hemi, which he uses to tow a 5th wheel trailer. Bill also installed PML front cover, Part Number 11136.

2017 Ram Power Wagon PML cover installed bracket and clearance all good with PML cover installed
Water drops visible in the pictures from washing covers.
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2017 Ram 2500 6.7L Diesel

Allen installed this cover on his 2017 Ram 2500HD with the 6.7 Cummins diesel.

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2018 Ram 2500 Cummins Diesel 4x4

Nick installed this rear differential cover and PML front cover, part number 11136, on his 2018 Ram 2500 Cummins diesel 4x4. Pictures show that there were not any clearance issues with the PML covers and the stock suspension.

2018 Ram 2500 Diesel 4x4 PML rear differential cover on a 2018 Ram 2500 2018 Ram 2500 bracket on PML differential cover
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Specifications

Installation Information

2014 to 2018 Ram 2500 trucks would probably need to drop the sway bar temporarily to install a PML cover. After replacing the stock cover with the PML cover, remember to bolt the sway bar back on.

Included with PML Differential Cover

PML includes a magnetic drain plug, fill and level check hole plugs and new mounting bolts with the differential.

Click on image to view larger.

Level Check and Fluid Fill Holes

Stock cover has a fill hole on the face. There is a line and the words "FLUID LEVEL" lower down, in middle of the cover. See first image below.

On the PML cover, there is a fill hole is near the top, about the 1 o'clock position. Another hole at about the 3 o'clock position can also be used to fill.

This PML differential cover has two possible level check holes on the side. The bottom of one hole is at the same location as the bottom of the stock cover oil fill hole. The bottom of the other hole is at the same location as the stock cover fluid level line. Follow your factory directions to fill with the correct amount of fluid.

Click on an image to view larger.

Both the stock cover fluid level line and the fill hole are on the face of the stock cover. PML puts the holes on the side for easier access.

Note: Locations are approximate. Installer must verify fit and fluid capacity.

Optional Machining for Temperature Sending Unit

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

Inside of Cover

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Front Cover for 4WD Trucks

PML makes a front differential cover these 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.

2013 and newer Ram 3500 and 2014 and newer Ram 2500 trucks have a round front end stock cover with 12 bolts. Please see PML's 12 bolt front differential cover.

Pre 2013/2014 trucks have the AAM 9.25 14 bolt cover and would need PML's 14 bolt front differential cover.

PML Differential Cover Compared to Stock

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