Fleece Performance Tie Rod Sleeves are a must for any 1999-2010 GM 2500-3500HD pickup that utilizes four-wheel drive. These support sleeves keep the weak factory tie rods from bending under the added stress of lifted torsion bars, increased horsepower and torque, and aggressive tires. They are powder coated to give them a durable finish and made from hex stock to provide easy installation.