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AAM 12.0 For Ram
    AAM 12.0 For Ram
    Purchase AAM 12.0 For Ram
    • AAM 12.0 For Ram
      Part Number: dc-asm-11176

    • This is a NEW product for 2019 and newer Ram 2500 and Ram 3500. The ring gear may be 11.5 or 11.8 or 12 inches.

      Note: The level check hole is about 3/8 inch diameter. If you need a larger level check hole, email or call PML. Cover includes magnetic drain plug and mounting hardware. Price varies with finish. READ MORE

      $0.00

    • OPTIONAL - add machining of a 1/8 NPT hole for an aftermarket temperature sending unit:
    •  

    Number of Bolts:: 14 bolts

    Volume: about 0.6 quarts over stock

    Dimensions: Click HERE for dimensions.

    2019 and newer Ram 2500 and Ram 3500 trucks may have this new American Axle Manufacturing (AAM) 14 bolt differential. The ring gear may be 12 or 11.8 or 11.5 inches.

    PML designed this differential cover based on the stock cover from a 2019 Ram 2500, which has a slightly different shape and bolt hole pattern than 2018 and older trucks.

    Check your factory fluid change procedure before ordering. The level check hole on the PML cover is about 3/8 inch diameter. If you need a large level check hole, for example a hole you can stick your finger in, you would need to use a tool or this cover may not work for you.

    Benefits:

    • Drain and magnetic drain plug included
    • Heavy duty, sand cast aluminum
    • Finned for heat dissipation
    • Works with brake line bracket, no modification needed
    • Clears sway and pan hard bars on trucks with coil suspension
    • Extra capacity

    We have seen this new differential on:

    • 2019 Ram 2500 and 3500
    • 2020 Ram 2500 and 3500

    Always check your truck to verify your differential and clearance. Configurations vary.

    We do not know if all trucks or just some are getting these newer differentials.

    PML also makes a rear differential cover for 2020 GM 2500 and 3500 trucks.

    For information on a matching front cover, see PML Part Number 11136.

    For a rear differential cover for 2014 to 2018 Ram 2500, see PML Part Number 11147.

    For a rear differential cover for 2018 and older Ram 3500 and 2013 and older Ram 2500 trucks with the AAM 11.5 or 11.8, see PML Part Number 10361.

    2019 Ram 2500 Diesel

    Craig installed this differential cover on a 2019 Ram 2500 diesel with stock pan hard and sway bars. He used the stock bolt for the clip on the right side after removing the bolt flange. He unbolted the track and sway bars for the installation and added about 4 3/4 quarts of fluid total.

    2019 Ram 2500 stock differential cover Stock rear differential cover   Bolts from brackets Bolts   PML AAM 12 differential cover installed PML cover installed   PML rear differential cover installed on 2019 Ram 2500, clears suspension No clearance issue with panhard and sway bars
    Click on image to view larger in a new tab or window.

    2019 Ram 2500 Diesel Hellwig Sway Bar

    This part was successfully installed on a 2019 Ram 2500 Diesel Truck with coil suspension and a Hellwig sway bar.

    Our thanks to Dave for working with us. Pictures from his installation are below:

    2019 Ram 2500 stock differential cover 2019 Ram 2500 stock differential cover   Draining 2019 Ram 2500 differential Draining fluid from 2019 Ram 2500 differential   PML differential cover installed on 2019 Ram 2500 PML differential cover installed
    Click on image to view larger in a new tab or window.

    2019 Ram 3500 Diesel

    Don installed PML front and rear differential covers on his 2019 Ram 3500 4x4 SRW with the 6.7 Diesel. Installation was straight forward and he did it in his driveway.

    2019 Ram 3500 SRW 4x4 6.7 Cummins 2019 Ram 3500 4x4   Stock differential covers from a 2019 Ram 3500 4x4 Stock front and rear differential covers   PMl front differential cover installed on 2019 Ram 3500 PML front differential cover installed
    Side view of PML rear differential cover on 2019 Ram 3500 Side view of PML rear differential cover installed   PML 14 bolt rear differential cover installed on 2019 Ram 3500 PML rear differential cover installed   Stock bracket for brake line fits with PML rear differential cover Stock brackets work with PML cover
    Click on image to view larger in a new tab or window.

    Drain, Fill and Level Check on PML Cover

    PML 2019, 2020 Ram rear differential cover, level check  Click on image to view larger.

    On this PML cover, the level check is the small hole on the side. There is a fill hole on the top and drain on the bottom.

    A magnetic drain plug and plugs for the level check and fill holes are included.

    Check your factory fluid change procedure before ordering. The fluid level check procedure is the same with the stock cover as with the PML cover. On the PML cover, the level check hole diameter is about 0.300 (3/8) inch. If a larger level check hole is needed, do not order this cover.

    Inside of PML Cover

    Gasket on PML cover Gasket on PML cover  Click on image to view larger.

    Included With PML Cover

    PML includes new mounting bolts, fill plug, level check hole plug, and a magnetic drain plug with each cover. The washer for the magnetic drain plug can be reused.

    PML differential cover includes hardware  Click on image to view larger.

    Stock Covers

    The covers and gaskets for 2019 and newer and pre–2019 are similar to earlier years but NOT interchangeable.

    2019 and newer Ram stock cover. Outside and inside.

    2019 Ram 2500 and 3500 stock rear differential cover   Inside of 2019 Ram 2500 and 3500 stock rear differential cover
    Click on image to view larger.

    2003 to 2018 Ram 3500 stock cover (also some 2003 to 2013 Ram 2500) and 2014 to 2018 Ram 2500 stock cover.

    2003 to 2018 Ram 3500 stock rear differential cover   2014 to 2018 Ram 2500 stock rear differential cover
    Click on image to view larger.

    Gaskets

    First picture shows 2019 and newer gasket next to an older gasket for 11.5, 11.8 differentials. Second and third pictures shows an attempt to put the older gasket on a 2019 Ram 2500 stock cover.

    New AAM gasket compared to pre 2019 gasket    
    Click on image to view larger in a new tab or window.

    These pictures show a gasket from a pre-2019 AAM 14 bolt cover on a 2019 Ram 2500 truck. The top and bottom bolt holes lined up but none of the other holes.