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GM Allison 10 Speed
    GM Allison 10 Speed
    Purchase GM Allison 10 Speed
    • GM Allison 10 Speed
      Part Number tp-asm-11174

    • Future product

      10 Speed GM 10L100 Allison Transmission Pan, Extra Capacity
      Let us know you are interested by signing up for our mailing list.

    Subscribe to our GM Allison 10 Speed Transmission Pan mailing list

    Please sign up for our email list so we know that you're interested in this pan. You will get updates about this project (like 2 or 3 emails per year).

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    In 2020, heavy duty GMC and Chevy Silverado and Sierra trucks started using the new Allison GM 10L100 10 speed. The Duramax diesels are usually paired with this new transmission on 2500 and 3500 models.

    In 2020, 4500, 5500 and 6500 trucks still use the classic 6 speed Allison transmission.

    PML GM 10L100 Allison Pan Development

    We are collecting information on vehicles and fitment and any clearance issues, like exhaust routing and frame cross members. We're also seeing how many folks are interested and if there is enough demand to justify the design and development costs.

    Any suggestions or pictures from your vehicle would be welcome! Email us at or call 310-671-4345.

    Benefits of PML Design

    • Extra capacity
    • Finned to increase surface area for heat dissipation
    • Drain and magnetic drain plug
    • Thick walls and gasket flange
    • Heavy duty construction