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  1. new!
    Performance Transmission Cooler Bar and Plate - GM 6.6L w Allison 1000/2000 Series
    As low as $389.99
  2. new!
    Pressure Calibration Kit GM Allison 1000 and 2000 Series 2011-2016 800HP+
    $29.99
  3. new!
    Pressure Calibration Kit GM Allison 1000 and 2000 Series 2011-2016 450HP-800HP
    $29.99
  4. Transmission Oil Thermal Bypass Valve
    $99.99
  5. Premium High-Efficiency Spin-On Transmission Fluid Filter
    $19.99
  6. Stage4 Complete Ready-to-Install Transmission - GM Allison
    As low as $3,849.99
  7. Stage5 Complete Ready-to-Install Transmission - GM Allison
    As low as $4,399.99
  8. Stage6 Complete Ready-to-Install Transmission - GM Allison
    As low as $4,999.99
  9. Stage5R Transmission Upgrade Kit - GM Allison
    As low as $1,550.00
  10. Stage6 Transmission Upgrade Kit - GM Allison
    As low as $2,199.99
  11. Stage5 Transmission Upgrade Kit - GM Allison
    As low as $1,599.99
  12. Stage4 Transmission Upgrade Kit - GM Allison
    As low as $1,199.99
  13. Stage4R Transmission Upgrade Kit - GM Allison
    As low as $1,150.00
  14. Stage4R C1 Clutch Pack - Allison
    $263.99
  15. Stage4R C4 Clutch Pack - Allison
    $310.99
  16. Stage4R C3 Clutch Pack - Allison
    $263.99
  17. Stage4R C2 Clutch Pack - Allison
    $358.99
  18. Standard Profile Aluminum Transmission Pan - Allison
    As low as $279.99
  19. Heavy-Duty DEEP Aluminum Transmission Pan - GM Allison 1000/2000/2400 series
    As low as $329.99
  20. Replacement GM Filter Magnet
    $12.99
  21. Victor Reinz JV8 Bead-N-Seal Silicone Aluminum Sealant
    $4.95
  22. ACDelco GM Original Equipment Automatic Transmission Oil Pan Gasket
    $45.99
  23. Billet C-2 Clutch Hub
    $569.99
  24. Billet Intermediate Shaft - GM Allison 2001-2010 (128020500)
    $699.99
  25. Deep Trans Pan Filter - GM Allison
    $17.99
  26. Stage6 C4 Clutch Pack - GM Allison
    $349.99
  27. Stage6 C3 Clutch Pack - GM Allison
    $529.99
  28. Stage6 C2 Clutch Pack - GM Allison
    $399.99
  29. Stage6 C1 Clutch Pack - GM Allison
    $329.99
  30. Transfer Case Brace - GM Allison 2011-2019
    $149.99
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