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McLeod Performance Allison 1000 Automatic Transmission Overhaul Kit with Steel Module (01-05 Sierra 2500 HD)

Item HG51494
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AmericanTrucks no longer carries the McLeod Performance Allison 1000 Automatic Transmission Overhaul Kit with Steel Module (01-05 Sierra 2500 HD). Please check out 2001-2006 GMC Sierra 2500 Drivetrain for an updated selection.
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    Product Information

    Features, Description, Q&A, Specs & Installation

    Features

    • McLeod Performance Allison 1000 Automatic Transmission Overhaul Kit with Steel Module
    • Complete Overhaul Kit for Allison 1000 Automatic Transmission
    • Includes High-Performance Friction Plates, Gaskets, and Seals
    • Upgraded Steel Module for Increased Strength and Durability
    • Designed to Withstand High Torque and Heavy-Duty Applications
    • Ideal for Performance Builds, Towing, and Off-Road Use
    • Hard Installation
    • McLeod Limited Warranty
    • Fits 2001-2005 Sierra 2500 HD

    Description

    Heavy-Duty Transmission Rebuild Solution. The McLeod Performance Allison 1000 Automatic Transmission Overhaul Kit with Steel Module is designed for serious upgrades in durability and performance. Tailored for the Allison 1000 found in the early-model Sierra 2500 HD, the McLeod kit is perfect for towing, off-road driving, and high-horsepower builds. It offers a comprehensive solution to reinforce your transmission for heavy-duty use and high torque output.

    Construction and Appearance. The kit includes premium friction plates, high-strength gaskets, and seals, along with an upgraded steel module engineered for superior strength under pressure. Each component is manufactured to meet performance-grade standards, helping extend the life and reliability of your transmission in demanding conditions. The McLeod overhaul kit enhances overall drivability while maintaining OE compatibility.

    Installation. Installation of the McLeod Performance Overhaul Kit is considered difficult and should be performed by a professional transmission specialist. The process involves full disassembly of the transmission and requires specialized tools, making it suitable for serious rebuilds or high-performance applications.

    Warranty. This product is backed by the McLeod Limited Warranty, providing confidence in materials and craftsmanship.

    Application. The McLeod Performance Allison 1000 Automatic Transmission Overhaul Kit with Steel Module fits 2001-2005 Sierra 2500 HD.

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (1) Full Set of Friction Plates
    • (1) Full Set of Steel Plates (Steel Module)
    • (1) Gasket and Seal Kit
    • (1) Set of Clutches
    • (1) Valve Body Seals and Related Components
    • (1) Installation Instructions Sheet
    5.0

    Reviews of McLeod Drivetrain Products (1)

    Questions & Answers

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