
Original: $1,348.00
-70%$1,348.00
$404.40The Story
Fits: 2001 thru 2004 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7 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 Clutches (C1-C5)
- Other brands such do not include the C5 clutch Pack which comes standard in all of our kits.
- Valve Body Upgrades
-
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
Note:
- Dmaxstore does not recommend any aftermarket transmission tuning with our transmissions
- HP Rating given is with an upgraded Billet Torque Converter and Billet Internals

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Fits: 2001 thru 2004 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7 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 Clutches (C1-C5)
- Other brands such do not include the C5 clutch Pack which comes standard in all of our kits.
- Valve Body Upgrades
-
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
Note:
- Dmaxstore does not recommend any aftermarket transmission tuning with our transmissions
- HP Rating given is with an upgraded Billet Torque Converter and Billet Internals























