SKU: ATS309-833-4248

Stage 3 Allison LCT1000 Crate Transmission

Ships From Manufacturer in 15-20 Days
Confirmed fitment below
YEARS
2001-2002
MAKE / MODEL
GM/Chevrolet/GMC / Silverado/Sierra
SERIES
2500HD/3500HD
ENGINE
6.6L Duramax LB7
Price
$7,809.99
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PRODUCT DETAIL

Key Features & Description

Features:

  • Complete Stage 3 transmission upgrade package
  • Includes ATS Five Star torque converter
  • Deep transmission pan increases fluid capacity
  • Features ATS Co-Pilot shift controller
  • Billet input shaft for added strength
  • Designed for 2WD trucks with PTO
  • Built for 6.6L LB7 Duramax engines
  • Handles heavy towing and high torque loads
  • Improves shift quality and drivability
  • $500 shipping surcharge applies at checkout

Upgrade Your LB7’s Drivetrain with Real-World Durability

If your LB7 Duramax is starting to show the limits of its stock transmission, the ATS 309-833-4248 Stage 3 Allison LCT1000 Crate Transmission offers the perfect solution to keep you on the road and working hard. Designed for 2WD trucks equipped with a PTO, this complete package is built to handle the extra demands of towing, hauling, and even mild performance tuning. It comes fully equipped with ATS’s upgraded Allison transmission, a Five Star torque converter for improved torque transfer, and a deep transmission pan that helps manage heat by increasing fluid capacity. Whether your truck earns its keep on the job site or you rely on it for long-distance towing, this package is designed to deliver reliable performance mile after mile.

Complete System with Built-In Strength and Control

ATS didn’t stop at rebuilding the transmission. This package also includes their Co-Pilot Transmission Controller, giving you smoother, more controlled shifting and improved torque converter lock-up when you’re under load. The billet input shaft adds another layer of strength, helping the transmission handle higher torque levels without breaking down when it matters most. ATS makes installation simple by providing everything you need in one package, and their $500 flat shipping fee covers both delivery and the return of your core transmission. If you’re looking for a dependable upgrade that improves drivability and long-term reliability, this Stage 3 Allison package is the perfect match for your LB7-powered Silverado or Sierra.

Fits: 2001, 2002 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7 PTO 2WD

FITMENT GUIDE

Exact Fitment — Verify Your Year

Year RangesYears
Make
Model
Series
Engine
2001-2002
GM/Chevrolet/GMC
Silverado/Sierra
2500HD/3500HD
6.6L Duramax LB7

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