Big Bore XD Steering Gear Box for JK
The PSC Motorsports Big Bore XD Steering Gear Box is designed to provide your Jeep Wrangler JK with a direct replacement for your 70mm stock piston. This kit uses a larger 80mm piston, giving it more turning torque to turn up to 37" tall tires without the need of cylinder assist. The sector shaft diameter is increased from 35mm to 42mm for a 35% increase in strength. More material was added to the case in all mounting, providing a sturdier base. This is a must-have for anyone running bigger than factory tires.
- Bolt-On Upgrade
- 1 Year Limited Warranty
- Recommended Fluid: Swepco 715 Power Steering Pump Fluid
- One (1) Steering Gear Box
- One (1) Pitman Arm
- Necessary hardware
- Installation instructions
Hose Kit Option:
For use if you decide to upgrade to a high flow pump. This will increase flow and prevent fluid from overheating.
Jeep Wrangler JK 2 Door (2007-2018)
Jeep Wrangler JK 4 Door Unlimited (2007-2018)
3 Reviews Hide Reviews Show Reviews
Thanks again OffRoad Elements for doing the install. Very happy with the performance of the new box . Steering seems to be much more precise and straighter down the road . Can’t wait to do some wheeling with it to really feel the difference
I chose to install the PSC XD2 box and XD pump kit on my 2015 Rubicon with 40's to help ease turning while locked and aired down offroad. I could have gone cheaper with a RNR hydro assist kit, however these systems inherently leak or have residue build up from them. I hate leaks, so I went to the most stock like system available, and I'm glad I did. Install instructions could be better from PSC. The box is HEAVY and a second set of hands makes it easier. the pump may not be necessary for all applications, but I wanted the most amount of turning force I could get. I have aired down to single digits multiple times, locked, on sandpaper-like granite, and I don't have issues turning when needed. I don't feel like I'm missing out with hydro assist. I fully expect this system to last me for years on end without any failure just like a stock system would.
install was a pain. instructions were lacking from pcs but a quick Google search and a YouTube video later and it's not that hard to install. off-road elements has the write up on how to bleed the system. turns my 35's no problem. was actually scary at first jeep responds like a normal vehicle instead of hand over handing turns. steering feels solid now and if ya get it the pitman arm bolt is 1 5/8th massive thing. I no longer fear the steering box snapping like the one one