TransGo Allison Jr. Shift Kit, 2006-2010 LBZ/LMM



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Fits: 2006 thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LBZ/LMM Duramax Diesel with Allison 1000 6-Speed Transmission

This TransGo Allison Shift Kit addresses common complaints of neutral/limp-mode under high load in 4th or 5th, burnt C2 clutch plates, no move forward or reverse, stuck in one gear as well as gear ratio and solenoid performance codes.


  • Corrects/reduces 3-4 slip & "limp mode"
  • Helps prevent burnt C2 & C3 friction plates
  • Friction torque capacity of C2, C3 & C4 brake increased by approx. 100%


  • (2) USA-made hardened steel trim valves, balls, inner & outer springs
  • Drill bit


  • Shift "firmness/feel" will be much more noticeable
  • Recommended for performance and towing applications
  • Common trouble codes this kit can help address: P0732, P0733, P0734, P0735, P0766 & P0777