Goerend Billet PTO Cover Set (2001-2015 Duramax LB7-LML)

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With our new tool that locates a lube hole directly feeding the C-3 clutch & patented PTO cover, you can get the much needed lube oil to the Allison C-3 clutches. The new PTO cover funnels oil to a hole in the trans case that supplies lube oil directly to the C-3 clutches. This oil would otherwise return to the trans pan unused. We have now directed it to the C-3 clutch pack to lube & cool this hard working clutch. We have created a jig tool to insure proper hole location when installing the Goerend PTO covers for the Allison 1000 and 2000 units. This upgrade must be done with the transmission out of the truck and empty - do not perform this upgrade unless the trans is disassembled. There is an $50.00 Refundable Core Charge Fee on Goerend Jig Tool to install covers. Use a ¼" drill bit with PTO jig tool. After you use the jig tool, please send it back to Goerend Transmission for your $50 refund. Jig tool refund amount will be based on condition once it is returned.

  • Billet Aluminum   
  • Adds Additional Cooling to the C3 Clutch Pack 



  • 5

    Posted by Unknown on Dec 17th 2019

    Ordered for a customer and they were very pleased

  • 5
    This kit is awesome!

    Posted by Mike on Dec 3rd 2019

    5.9/Allison 2400 - Had the back out for some re-gear, so I decided to put this kit in. This kit is awesome, it works and it put fluid where it needs to be.

  • 5

    Posted by JORDAN on Nov 14th 2019


  • 5
    Best on the Market

    Posted by Levi M. on Mar 23rd 2019

    Extremely nice quality, fit perfectly. Instructions are spot on! I’m a firm believer in anything by Goerend!

  • 5
    Amazing craftsmanship

    Posted by Todd on Nov 22nd 2017

    These are beautiful... Well worth the money and a definite need for a for a long lasting allison.

  • 5
    gorgeous yet Functional

    Posted by Unknown on Oct 1st 2017

    Covers fit like a glove and look amazing and are built for a purpose. I'll use these for any Allison I build again

  • 5

    Posted by Ryan Vanluchene on Aug 6th 2017

    These PTO covers are amazing! Well worth the money! The machining on the covers is top notch! Really easy install with the jig to drill the holes! I would highly recommend these to anyone who pulls their transmission for any work what so ever!