Rare Parts originally designed these heavy duty tie rods for AM General, known for building the world-famous Humvee. We continued to refine and develop this kit for GM trucks after GM and AM General separated, as an essential upgrade for the frail factory tie rods that are a known weakness on these vehicles. Now in its second generation, our part number RP28559 is burlier than ever, and is backed by Rare Parts’ world-class engineering and development, as well as thousands of miles of real-world torture testing on some of the hardest-working trucks in the field. For the newer generation vehicles, we now also offer a heavy duty tie rod set as part number RP29092. Please confirm your correct fitment using Part Finder. These heavy duty tie rod assemblies are what you should expect to be on your vehicle from the factory, yet they greatly exceed OE specifications. Whether your rig is a daily driver, toy hauler, or work truck, the Rare Parts heavy duty tie rod assembles have been designed for heavy duty use.