*Requires a ported steering gear. This kit will not work without one.* If you’re running big tires and lockers on your JL, JLU, or JT, your factory steering’s gonna struggle—especially on the trail. PSC’s Cylinder Assist Axle Kits are built to give you the torque and control you need when things get technical. Whether you’ve swapped in aftermarket D44s or D60s, or you’re still running the factory D30/D44 setup, we’ve got a kit that fits. Each kit includes everything you need to mount a PSC assist cylinder to your axle—brackets, hardware, and the right stroke length for your setup.