Extreme Duty Alloy Series Steering UPGRADE kit - 2001-2010 Chevy/GMC 2/4WD 1500HD/2500HD/3500HD trucks & 2500 SUV/H2. Uses the outer tie rods already installed if the vehicle already has the Cognito TRK100046. If the vehicle does not already have the TRK100046 installed, then the complete kit needed is TRKCL-EXTD-2001GM8. For use only in OEM position. Not for use with lift kits that use a dropped center link. 5 year warranty on original parts.