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Thumbnail Filmstrip of PSC SK688R38JP1-8.0W-1.5OS Big Bore XD Cyl Assist, JK 3.8L (07-11), Aftmkt D60 Axles, 1.5 OS Clamp Images
If you’re running lockers, big axles, and 40s on your JK, your factory steering isn’t going to cut it. PSC’s BIG BORE XD Cylinder Assist Steering Kit is the ultimate upgrade for 2007-2011 Jeep Wrangler JK/JKU 3.8L owners who demand serious steering performance. Built for Jeeps with locking differentials, aftermarket axles, and tires up to 44in, this kit delivers the torque and control you need on the toughest trails.
Every kit includes PSC’s BIG BORE XD Steering Gear, a high-performance pump kit with remote reservoir, a Cylinder Assist kit, and all the hardware you need for a clean install. Say goodbye to steering play, pump overheating, and white-knuckle turns when your lockers are engaged.
This listing is PSC part number SK688R38JP1-8.0W-1.5OS (Axle Type: Aftermarket; Lock-to-Lock Stroke: 8in; Tie Rod Clamp Size: 1-1/2in OS).
Specifications
- Part Number: SK688R38JP1-8.0W-1.5OS
- Axle Type: Aftermarket
- Lock-to-Lock Stroke: 8in
- Tie Rod Clamp Size: 1-1/2in OS
- Lock-to-Lock Stroke: 6.75in, 7.5in or 8.0in
- Tie Rod Clamp Sizes: 1-1/4in, 1-3/8in, 1-1/2in, 1-5/8in, 1-3/4in, 2.0in, or No Clamp
- Axle Type: Standard or OE Axle
- Steering Gear: BIG BORE XD
- Pump Kit Includes: Reservoir, Fluid Cooler, Anti-Splash Valve, Serpentine Belt, Brackets, Hoses, Fittings, and 4 QTS PSC 715 Fluid
- Assist Cylinder: 1.75in x 6.75in (No-Weld, Bolt-On)
Installation Notes
- Pitman Arm Puller
- Tie Rod End Puller
- Axle Caster Gauge
- Pneumatic Anaerobic Thread Sealant
- Ideal for: Hardcore off-road builds, Rock crawlers and overlanders, JK owners tired of fighting the steering wheel
Fitment
- Jeep Wrangler JK 3.8L (2007-2011), 2-door or 4-door
- Designed for rigs with lockers, aftermarket axles, and up to 44in tires
What’s Included
- BOX 1: SG688R BIG BORE XD Steering Gear
- BOX 2: Complete Pump Kit
- BOX 3: Cylinder Assist Kit (Cylinder Assist, Bracket, Hose Kit, Rod Ends, Tie Rod Clamp)
- BOX 4: Fluid Cooler and PSC 715 Power Steering Fluid