SKU: ATS309-834-4308

Stage 3 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
$7,809.99
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PRODUCT DETAIL

Key Features & Description

Features:

  • Complete Stage 3 performance transmission package
  • Includes ATS Five Star torque converter
  • Deep transmission pan for improved cooling
  • Features ATS Co-Pilot transmission controller
  • Billet input shaft for added strength
  • Designed for 4WD Duramax applications
  • Handles increased power and heavy towing
  • Engineered for 6.6L LBZ Duramax engines
  • Improves drivability and transmission reliability
  • $500 shipping surcharge applies at checkout

Take Your LBZ to the Next Level with Proven Transmission Performance

If your LBZ Duramax has been worked hard or is running more power than stock, it might be time to rethink what’s sitting between your engine and your rear wheels. The ATS 309-834-4308 Stage 3 Allison LCT1000 Crate Transmission gives you a complete, ready-to-install solution built to handle towing, hauling, and higher horsepower without skipping a beat. This package comes fully equipped with ATS’s performance-built Allison transmission, their Five Star torque converter for better power transfer, and a deep transmission pan designed to keep fluid temperatures in check. It’s built to meet the needs of serious truck owners who push their rigs every day, whether for work, play, or a little of both.

Built for Heavy Loads, Big Power, and Long-Term Reliability

This package goes beyond just upgraded hardware. It includes ATS’s Co-Pilot Transmission Controller, giving you more control over shift quality and torque converter lock-up to improve drivability under load. A billet input shaft adds extra strength where it’s needed most, helping the transmission handle the increased stress that comes with tuning or heavy towing. This combination of parts works together to boost reliability and performance without sacrificing everyday drivability. ATS also makes the shipping process easy with a $500 flat rate for round-trip freight, covering both delivery and core return. If you’re looking to replace your worn-out transmission with a package built to handle real-world abuse, this Stage 3 system is ready to deliver.

Fits: 2006, 2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LBZ 4WD

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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