This Pre-Built DT550 Built Transmission includes the following.

Upgraded Clutches:

• C1 - C4 Raybestos GPZ/Borg Warner Clutches
• C5 Raybestos Clutches
• Improved clutch torque capacity
• High heat resistance
• Smooth engagements
• Maximized reliability
• Better durability than stock
• Made in the USA

Extra Clutches:

• DT550 has added clutches for stronger clutch holding capacity
• The factory Allison has 12 C1 clutches, the DT550 has 16
• The factory Allison has 6 C2 clutches, the DT550 has 7
• The factory Allison has 4 C3 clutches, the DT550 has 6
• The factory Allison has 5 C4 clutches, the DT550 has 6

All New Electronics:

• New Neutral Safety Switch
• New Speed Sensors
• All OEM Electronics and Sensors
• No risk of corrosion, shorts, and bad connectors
• Trouble free operation
• Provides long-term reliable performance we can stand behind

Upgraded Valve Body:

• TransGo shift kit with Mike L. upgraded shift springs
• Provides quicker, crisper shifts
• Rebuilt valve body with new solenoids, pressure switch & harness

Upgraded C3/C4 Return Springs:

• Stronger and more durable design
• More dependable clutch pack release
• Improves shift quality

LML Dual Disc Torque Converter:

• Dual disc design
• Superior strength compared to stock 01-10 single disc torque converter
• Smooth consistent lock-up
• 1800 - 1900 RPM Stall Speed
• Perfect stall speed for towing and daily driving
• Provides reliability for increased power levels

Upgraded Transmission Case:

• Pre-drilled to accept C3 Oiler upgrade (Even if not selected)
• Easily upgradable in the future

Upgraded Line Pressure Spring:

• Upgraded TransGo lock-up valve
• Increases line pressure for stronger clutch holding force

Optional Upgrades:

• C-3 Oiler (increased lubrication of clutches, improves overall longevity and reliability)
• Deep Pan (increases fluid capacity, cleaner, cooler fluid)

This Transmission Is Right for You If You:

• Aren't looking to upgrade your injectors and CP3 down the road
• Might consider an upgraded turbo
• Mainly daily drive your truck or use it for work
• Tow light to medium loads frequently
• Have a high mileage or worn-out transmission
• Are experiencing limp mode
• Currently have P0700 codes
• Experiencing other mechanical issues with your stock trans
• Quality and Reliability are your top priority
• Want something made in the USA
• Value a warranty with unlimited miles in the 1st year

The LB7 (2001-2004) DT550 Built Transmission by Duramaxtuner.com is specifically designed for 2001, 2002, 2003 and 2004 Chevy Silverado and GMC Sierra 6.6L Duramax Trucks

Note: All pictures shown are for illustration purposes only. Actual product may vary due to product enhancement.

Features and Benefits:

• Add the 6th gear that your truck never had!
• Includes 6 Speed Conversion Kit - Save $300 vs. purchasing separately.
• Custom TCM tuning for your truck.
• Double Overdrive = 14 percent RPM reduction.
• Less road noise & vibration.
• Improved fuel economy.
• All new upgraded clutches compared to stock
• Additional clutches for added holding strength
• All New Electronics
• An upgraded valve body
• Upgraded C3 and C4 return springs
• Dual Disc LML torque converter
• A 3-year standard or 5-year extended warranty

Details:

• Finish: Painted
• Color: Stealth Grey
• Includes: 6 Speed Conversion Kit
• Transmission Model: Allison
• Transmission Build: DT550
• Number of Speeds: 6
• Clutches: Raybestos GPZ/Borg Warner C1-C4, Raybestos C5
• Torque Converter: LML Dual Disc
• Stall Speed: 1800 - 1900 RPM

Fitment Notes:

• Make: Chevrolet, GMC
• Model Year: 2001-2004
• Engine Code: LB7
• Engine Size: 6.6 Liter
• Engine Family: Duramax