Fits: 2006 thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LBZ/LMM Duramax Diesel

Our Stage 5 is one of the strongest transmission kits available. Built to handle everything you can possibly throw at it: Street, sled pulling and drag racing. Perfect choice for the Duramax owner who is planning for around 800-1000 HP to the wheels. This kit does not include a torque converter, a billet converter is highly recommended. 

Includes:

• High Friction Performance Clutch Kit (C1-C5)
  • ​Other kits on the market only provide C1-C4 Clutch Packs, We add the C5 pack at no extra cost to make this kit the most complete on the market.
• Valve Body Upgrades​
  • ​Transgo Shift Kit
  • Transgo Boost Valve Regulator Upgrade
  • Ratiotek Valve Body Upgrade Kit
• Housing and Transfer Case Adapter Gaskets
  

Optional:

• Install Kit: Includes all Gaskets/Thrust Washers/Hardware that we replace when building a Complete Allison in house.
• Electrical Parts: (We recommend replacing all electrical parts if you are rebuilding a transmission that has failed)
• Filter Kit includes:
  • DmaxStore Performance Spin on Filter
  • Allison Spin on Filter Magnet
  • Allison Internal Filter, standard or deep sump
    
• Billet PTO Cover Kit includes:
  • ​2x Custom Billet PTO Cover
  • 12x Stainless PTO Bolts
  • 2x PTO Cover Gaskets
    
• Allison Performance C2 Hub:
  • ​Designed to improve lubrication for the C2 clutches.
  • Lack of lubrication causes premature clutch wear especially when power has been increased

DmaxStore Notes: 

• Dmaxstore does not recommend any aftermarket transmission tuning with our transmissions
• HP Rating given is with an upgraded Billet Torque Converter and Billet Internals