Description
This Pre-Built LB7 5-Speed STR – Built 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
Updated Electronics
Neutral Safety Switch
Speed Sensors
All OEM Electronics and Sensors
Solenoids tested in-house for a higher level of reliability
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
Brand new valve body and solenoids
Upgraded C3/C4 Return Springs
Stronger and more durable design
More dependable clutch pack release
Improves shift quality
Upgraded Billet Torque Converter
Dual Disc Torque Converter
Designed to rotate smoother when coupled
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 efficiency.
Reduced Wear and Tear
Quicker and more responsive shifts, enhancing driver control and enjoyment.
Increases average HP making it to your wheels during acceleration
Optional Upgrades:
C-3 Oiler
Increased lubrication of clutches
Improves overall longevity and reliability
Deep Pan
Increases fluid capacity
Cleaner, Cooler fluid
IS THIS TRANSMISSION IS RIGHT FOR YOU IF YOU…
Aren’t looking to upgrade your injectors and CP3 down the road
You’re shopping for a Stock Replacement Transmission
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) STR Built Transmission by Duramaxtuner.com is specifically designed for 2001, 2002, 2003 and 2004 Chevy Silverado and GMC Sierra Duramax Trucks.
View DT Series Transmission 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
