Dirt King Engine Cage Kit | GMC Sierra 1500 (1999-2006)

The Dirt King Engine Cage Kit is a heavy-duty frame reinforcement and support system designed specifically for 1999–2006 Chevy Silverado 1500 and GMC Sierra 1500 (both 2WD and 4WD) trucks. It strengthens the front frame area to reduce flexing under load and enables the installation of taller shock towers used in long-travel suspension builds. By adding this cage, you can gain approximately 2–3 inches of additional upward travel when paired with Dirt King long-travel race kits, enhancing suspension performance on rough terrain and high-articulation applications. The kit includes all necessary pre-bent tubes and mounting tabs for faster assembly and installation.

This engine cage is especially beneficial for trucks where the stock frame may flex under heavy loads or during aggressive off-road use, helping create a stiffer, more robust front end foundation that works with advanced suspension upgrades.

Specifications

• Material: Heavy-duty steel
• Finish: Raw steel

Compatibility

GMC Sierra 1500 2WD / 4WD 1999-2006

Installation

The Engine Cage Kit mounts inside the front frame rails and joins key structural points to reduce flex and support long-travel suspension geometry. Installation involves positioning the pre-bent tubing and tabs in place, and welding or bolting them according to Dirt King’s instructions. Proper fitment and welding quality are important to maintain structural integrity. Once installed, the engine cage provides a stronger platform for advanced suspension upgrades like taller shock towers and long-travel conversion kits.