Description
Description
The DT550 built transmission is designed for 2001-2016 Duramax owners that use their trucks regularly. Great for those that tow heavy or just want a more reliable Allison 100 transmission. Our relentless testing of this pre-built Allison transmission means you don’t have to worry about getting where you are going. Our rigid standards for excellence are not limited to just overall strength, this setup is meant for the daily drivers. No harsh shifting or banging of gears. Just smooth, positive shifts and an easy converter lock-up. Everything you need can be included in 1 simple purchase. Your DT550 Built Transmission will come with New/Upgraded clutches and steels, electronics, sensors, valve body, and torque converter, ready to be installed. We will even help arrange roundtrip shipping.
The LLY DT550 Transmission Includes:
Upgraded Clutches
C1 – C4 Raybestos GPZ 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
Upgraded 6 speed valve body
Brand new solenoids
Upgraded C3/C4 Return Springs
Stronger and more durable design
More dependable clutch pack release
Improves shift speed and quality
Upgraded Billet Torque Converter
Totally Custom for the DT550
Goerend Billet Triple Disc (Stock has one disk)
Designed to rotate smoother when coupled
Forged front cover and clutch pistons
Billet steel back cover
Insures torque converter clutch lock up
Stator guaranteed to never break
Proprietary high-performance multi-disc lock up clutches
Superior strength to stock
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
DuramaxTuner TCM Tuning Included!
Electronically increases line pressure and clutch holding force
Increased torque management
Better towing performance, including smoother shifts and reduced heat buildup.
Shift point options for optimized performance or efficancy.
Reduced Wear and Tear
Quicker and more responsive shifts, enhancing driver control and enjoyment.
Increases average HP making it to your wheels durring acceleration
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
Take your ’01-’05 Allison to another level by adding a sixth gear!
SAVE $300 WHEN YOU ADD A 6-SPEED CONVERSION KIT TO YOUR BUILD!
Custom TCM tuning for your specific truck
Double Overdrive = 14% RPM reduction
All new valve body, wiring harness, and solenoids
Lowered road noise
Gear indicator works on Edge CTS monitor
Works with high idle, retrofit tap shifters
The LLY DT550 Built Transmission by Duramaxtuner.com is specifically designed for the 2004.5, and 2005 6.6L Duramax Equipped Chevy Silverado 2500/3500’s and GMC Sierra 2500/3500’s
View DT Series Trasmission Product Warranty Information – PDF
* ALL PICTURES SHOWN ARE FOR ILLUSTRATION PURPOSES ONLY. THE ACTUAL PRODUCTS MAY VARY DUE TO PRODUCT ENHANCEMENT.
* Prop 65WARNING: Cancer & Reproductive Harm – P65Warnings.ca.gov
