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Stage6 Transmission Upgrade Kit - GM Allison

In stock
As low as $2,199.99

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On Orders Over $20

to Contiguous 48 United States

Have Questions? 714-985-4825

50 State Legal50 States Emissions Legal (E.O. D-701-18)
Built with top-level performance and heavy duty use in mind, PPE’s Stage6 will handle whatever you can throw at it.

The Stage6 Transmission Kit is the strongest transmission upgrade kit that PPE offers. Thanks to the triple clutch converter, valve body recalibration kit (recalibration kit does not change shift points, only increases clutch holding power), converter flow Valve, upgraded C1, C2, C3 and C4 clutches and Kolene steels.

NOTE: A $200 converter core charge is included in price if bought with converter, reimbursed upon return of good core components to PPE. PPE product finish will vary.

Choose your Application Year and Converter Option

  • 2001-2004 No Converter - 128036201
  • 2001-2004 BC Converter - 128036001
  • 2001-2004 BCBS Converter - 128036301
  • 2004.5-2005 No Converter - 128036202
  • 2004.5-2005 BC Converter - 128036002
  • 2004.5-2005 BCBS Converter - 128036302
  • 2006-2010 No Converter - 128036203
  • 2006-2010 BC Converter - 128036003
  • 2006-2010 BCBS Converter - 128036303

Installation Guide: Stage4-5-6 Trans_Install_v23B.pdf


  • Billet triple clutch converter: "BC" Billet Cover (standard) "BCBS" Billet Cover Billet Stator (optional)
  • C1, C2, C3, C4 included
  • Valve body recalibration kit, boost valve, pump shim and gaskets
Kits vary by quantity, thickness and material based on your specific transmission needs. Call to discuss your transmission project to ensure you get the most from your build.



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