Drivetrain› Automatic Transmissions and Components

DuraMax Tuner

LB7 (2001-2004) 5 SPEED DT750 BUILT TRANSMISSIONS W O TORQUE CONVERTER CORE CHARGE OF $1500 APPLIES

$5,535.00

SKU: D06C dt750-LB7-5

In Stock
In Stock
Ships by Jun 19
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Duramax Tuner Built DT750 5-Speed Transmission & Converter Package is a direct-fit upgrade for the factory Allison 1000 transmission in 2001-2004 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L LB7 Duramax engine. It is designed for daily drivers and towing, offering smooth, positive shifts and easy torque converter lock-up.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDuraMax Tuner
Part NumberD06C dt750-LB7-5

Videos

DURAMAXTUNER.COM - BUILT TRANS

DURAMAXTUNER.COM - BUILT TRANS

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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