SKU: ATS309-813-4308

Stage 1 Allison LCT1000 Crate Transmission

Ships From Manufacturer in 15-20 Days
Confirmed fitment below
YEARS
2006-2007
MAKE / MODEL
GM/Chevrolet/GMC / Silverado/Sierra
SERIES
2500HD/3500HD
ENGINE
6.6L Duramax LBZ/6.6L Duramax LMM
Price
$5,794.99
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PRODUCT DETAIL

Key Features & Description

Features:

  • Fits 2006–2007 GM 2500HD/3500HD 2WD
  • Designed for 6.6L Duramax LBZ with PTO
  • Includes ATS Stage 1 LCT1000 transmission
  • Comes with Five Star torque converter
  • Deep transmission pan for better cooling
  • Built for towing and daily work use
  • Enhanced durability over stock components
  • Smoother shifting and improved drivability
  • Supports factory PTO functionality
  • Reliable upgrade for work-ready Duramax trucks

A Smarter, Stronger Replacement for Your LBZ Workhorse

If your 2006–2007 Silverado or Sierra 2500HD/3500HD with a 6.6L Duramax LBZ and PTO is starting to show signs of transmission fatigue, the ATS Stage 1 Allison LCT1000 Crate Transmission is a reliable upgrade built with real-world use in mind. Whether you're pulling a trailer, operating PTO-driven equipment, or simply need your truck to perform under load day in and day out, this package offers a solid improvement over the factory setup. It’s designed specifically for 2WD models with PTO, making it a true plug-and-play solution for hardworking trucks. With upgraded internals, this transmission is built to handle the daily grind with smoother shifts, stronger power transfer, and the durability you need when the job can’t wait.

Proven Components That Work as Hard as You Do

This Stage 1 setup includes ATS’s Five Star torque converter, known for delivering tighter lockup and more efficient torque multiplication—especially useful when towing or accelerating under load. You’ll also benefit from a deep transmission pan, which boosts fluid capacity and helps manage heat, one of the key killers of transmission longevity in demanding conditions. Whether you're navigating city routes or racking up miles on the highway, the result is more consistent performance and less wear and tear over time. This transmission isn’t about flashy numbers—it’s about keeping your truck dependable and responsive for the long haul. For those who count on their Duramax every day, this crate transmission delivers peace of mind without overcomplicating things.

Fits: 2006, 2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LBZ PTO 2WD

Includes:

  • ATS 2WD w/ PTO 2006-2007 Allison LCT1000 Performance Transmission
  • ATS Allison LCT1000 Five Star Torque Converter (302-950-4248)
  • ATS Allison LCT1000 Deep Transmission Pan (301-900-4248)

Note: $500 Shipping surcharge will be added at checkout

FITMENT GUIDE

Exact Fitment — Verify Your Year

Year RangesYears
Make
Model
Series
Engine
2006-2007
GM/Chevrolet/GMC
Silverado/Sierra
2500HD/3500HD
6.6L Duramax LBZ/6.6L Duramax LMM

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