Fits: 2004.5 thru 2005 Chevy Silverado/GMC Sierra 2500HD/3500HD LLY Duramax Diesel

*Built to order, average 2-3 week lead time, please call for most up to date lead time*

Fully assembled, the DmaxStore Stage 4 transmission is rated at 800HP. An outstanding value and more than capable of getting the job done. Perfect choice for the Duramax owner who is running some higher horsepower tunes, larger turbo, larger injectors/pump and is planning on taking the truck to the track a couple times a season. The Dmaxstore stage 4 is ready for almost anything you can throw at it with the stock bottom end.

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.

Features:

• Precision Industries Billet Triple Disc ML Converter ​(Provided Torque Converter Bolts must be used or damage may occur)
  • ​The Precision ML series is our #1 selling converter. An excellent choice for customers who primarily use their trucks for heavy towing, daily driving, and occasional drag racing or sled pulling. Performs great with stock or modified turbo's. Stall speed is very similar to stock approximately 1900 rpm. Its proprietary Triple Billet design makes it virtually indestructible.
• Performance Clutch Kit (C1-C5)
  • ​Other builds on the market only provide C1-C4 Clutch Packs, We add the C5 pack at no extra cost to make this build the most complete on the market.
• Valve Body Upgrades​
  • ​Transgo Shift Kit (2001-2010 Trucks)
  • Transgo Boost Valve Regulator Upgrade (2001-2010 Trucks)
  • Ratiotek Valve Body Upgrade Kit (All Years)
• 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.
• Billet PTO Covers with Stainless Steel Bolts

Includes:

• New Seals, Gaskets and O-rings
• New Thrust Washers
• New Bushings
• New Clutches
• New Filters
• New Allison Deep Sump Pan
• New Genuine Allison Harness, Solenoids and Sensors
• New Allison Performance C2 Hub
• New Torque Converter

Optional Parts:

• DmaxStore High Capacity Transmission Pan, 2001-2019 6.6L Duramax
  
• Xcalliber Allison Billet Performance Shafts (Input recommended at 600+ HP, All 3 recommended at 700+ HP)
  
• Xcalliber Allison P2 Carrier, Billet C2 Hub, and Sun Gear (Recommended at 700+ HP)

DmaxStore Notes:

• This is a custom order part, once it has been processed, it CANNOT be canceled, returned, or refunded.
• Please keep your transmission cooler line fittings and inspection cover from your core transmission.
• 5 year unlimited mileage warranty on the Precision Torque Converter
• 2 year unlimited mileage warranty for internally lubricated parts, seals, and gaskets including the Clutch Packs.
  • Subsequent damage caused by a failure external to the transmission internals is not covered under warranty.
• Warranty may be voided if stock core hard parts fail and:
  • recommended Billet parts are not selected
  • your truck exceeds the horsepower ratings listed in recommendations
• Provided Torque Converter Bolts must be used or damage may occur
• Dmaxstore does not recommend any aftermarket transmission tuning with our transmissions
• Free shipping to the lower 48 States, other locations will incur an additional fee

Core Charge: 

• $1950.00 is for the Allison Transmission, Torque Converter, and the Shipping Container it comes in. Cores will be inspected once received and the refund may be deducted if there is any damage to the hard parts.