ATS 304-910-4248 Allison Billet Input Shaft | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features: - Billet steel construction for maximum strength - Reinforces Allison transmission input shaft - Prevents common breakage under heavy load - Ideal for towing and performance builds - Designed for 2001-2016 Duramax 6.6L trucks - Precision machined for perfect fit - Improves transmission durability and reliability - Handles increased horsepower and torque - Sold individually as a complete shaft Strengthen the Backbone of Your Allison Transmission If you’ve ever put your Duramax-powered Silverado or Sierra to the test—whether towing heavy loads or running performance upgrades—you’ve probably heard about the Allison transmission input shaft being a weak link. The factory shaft works fine for stock power, but it often fails when you start pushing more torque through the drivetrain. That’s exactly why ATS designed their Billet Input Shaft. Precision machined from billet steel, this shaft offers superior strength and durability compared to the stock part. It’s built to handle the kind of stress that comes with heavy hauling, larger tires, or added horsepower, giving you confidence every time you hit the road or the jobsite. Built for Serious Duramax Performance and Reliability This billet input shaft is a direct replacement for 2001 to 2016 GM Silverado and Sierra 2500HD and 3500HD models equipped with the 6.6L Duramax. Whether you use your truck for daily driving, towing your camper, or competing in sled pulls, this upgrade helps eliminate one of the most common failure points in the Allison transmission. It’s designed to fit perfectly without any modifications, making it a smart choice for anyone looking to increase the reliability of their drivetrain. Sold individually, this shaft is built to take the abuse so your truck can keep working as hard as you do, mile after mile. Fits: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax