DmaxStore Complete Stage 3 Transmission

Fits 2001-2016 Chevy/GMC 2500/3500 HD 4x4

HP Rating: 550 HP

*2 Year Unlimited Mileage Warranty*

*Built to order, 1-2 week lead time*

Fully assembled, The Dmaxstore stage 3 transmission is an outstanding value and more than capable of getting the job done. Perfect choice for the Duramax owner who is running some performance tuning and other bolt on mods or just looking for a great stock replacement. Great for towing, daily driving, and occasional track racing.

Your DmaxStore Performance Transmission will be built from start to finish by certified Allison technicians. 

The pride you take in your vehicle is the same pride we take in building each and every one of our DmaxStore Transmissions. We’re not happy until you are.

Every DmaxStore Performance Transmission is built with:

• New seals, gaskets and O-rings
• New bearings
• New bushing
• New Clutches
• New filters
• New harness, solenoids and sensors
• Torque converter

Stage 3 Transmission features:

• Updated Oil Pump & Front Support for increased pressure.
• External Hardware & Electrical.
• New Internal & External Filters.
• New Thrust & Ball Bearings.
• New updated Garlock lined Teflon Bushings.
• Updated LML style C3/C4 molded pistons
• Updated LML style C3/C4 return spring assemblies
• Updated P1 Flange.
• Updated C2 Hub.
• High Energy Plates
  • C1  6 frictions and 6 steels
  • C2  6 frictions and 6 steels
  • C3  5 frictions and 5 steels
  • C4  6 frictions and 6 steels
  • C5  6 frictions and 6 steels ​
• Performance Valve Body
• Transgo Shift Kit
• Dual Friction Converter, stock stator & piston.

DmaxStore Note: This is a custom order part, once it has been processed, it CANNOT be cancelled, returned, or refunded.

***Free shipping to the lower 48 States***

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If you choose the Core + 10% option on this product, you will receive an additional $150 on top of the $1,500 core refund for a $1,650.00 Dmaxstore gift card (once core refund is processed).  Please fill out and return the core choice form that is included with your shipped product along with your core.