PSC Big Bore XD Steering Gear Box (Wrangler JK 2007-2018)

PSC Big Bore XD Steering Gear Box (Wrangler JK 2007-2018)

The stock JK steering box? It’s fine for stock tires and errands. But throw on 37s, a locker, and a weekend in Moab, and that thing’s begging for mercy. The BIG BORE XD® is the fix—built with a beefy 45mm sector shaft and a reinforced case so it won’t twist, crack, or cry when you crank it hard. Pair it with a PSC High-Flow Pump Kit and you’ll feel the difference the first time you turn the wheel—smooth, strong, and no more arm wrestling at the trailhead.

Kit Includes:
- Steering gear box
- PSC proprietary pitman arm
- Necessary hardware
- Installation instructions

• 45mm sector shaft – nearly 30% bigger than stock for serious strength
• 16:1 ratio with 80mm piston – more torque, better road feel
• Includes PSC proprietary Pitman arm – no guessing, no mismatched splines
• Bolt-on upgrade – fits JK/JKU with factory mounts
• Handles 35s without assist – and Cylinder Assist® makes it unstoppable

Notes:
** This gear tips the scale at ~57lbs. Use a jack or a buddy
*** If you're running a Synergy MFG Front Track Bar Brace (or similar), you must add HWK-688-PP. Using factory or PSC 100mm bolts can crack the case
**** Supplied arm has no extra drop. Some setups may need a drag link flip kit for proper geometry

Fits:
Jeep Wrangler JK 2 Door (2007-2018)
Jeep Wrangler JK 4 Door Unlimited (2007-2018)