Swapping a Dana 60 under your GM 2500 or 3500 and want steering that can handle it? This BIG BORE XD Cylinder Assist Kit is built for straight axle conversions and off-road setups that need serious turning power. Whether you're rock crawling, trail running, or just want your steering to feel solid again, this kit gives you the muscle to turn big tires like they’re stock. PSC’s been leading the way in Cylinder Assist systems for GM trucks, and this kit includes everything you need for a clean, bolt-on install—no guesswork, no piecing parts together. You’ll get our top-of-the-line steering gear, high-performance pump kit with remote reservoir, assist cylinder with hardware, and a hose kit to tie it all together.