Product Description
The PSC SK688R38JP1-8.0W-1.75 Cylinder Assist Steering Kit is the ultimate steering upgrade for 2007-2011 Jeep Wrangler JK and JKU models equipped with the 3.8L engine. Designed for vehicles running large tires, locking differentials, and aftermarket axles, this complete PSC BIG BORE XD® steering system delivers unmatched steering torque, durability, and control in extreme off-road environments. PSC engineered this kit specifically to eliminate factory steering weaknesses common on lifted Jeep JK platforms. The kit includes PSC’s exclusive BIG BORE XD steering gearbox, a high-volume power steering pump kit, and an 8.0-inch stroke hydraulic assist cylinder designed to dramatically reduce steering effort under heavy loads. This configuration is designed for aftermarket front axles with 8.0 inch lock-to-lock geometry and includes a heavy-duty 1.75 inch tie rod clamp with weld-on mounting tabs for maximum durability. Whether you’re running a Dana 60 front axle, 40-44 inch tires, or a fully built rock crawler, this PSC steering system delivers the control and steering authority needed to tackle the toughest trails.
Fitment
- 2007 Jeep Wrangler JK 3.8L
- 2008 Jeep Wrangler JK 3.8L
- 2009 Jeep Wrangler JK 3.8L
- 2010 Jeep Wrangler JK 3.8L
- 2011 Jeep Wrangler JK 3.8L
- Designed for aftermarket front axles with 8.0 inch lock-to-lock steering geometry
- Compatible with Dana 60 and heavy-duty aftermarket axles
- Ideal for vehicles running large tires up to 44 inches
Specifications for psc SK688R38JP1-8.0W-1.75
| Specification | Details |
|---|---|
| Manufacturer | PSC Motorsports |
| Part Number | SK688R38JP1-8.0W-1.75 |
| UPC | 687927188563 |
| GTIN | 687927188563 |
| Steering System Type | PSC BIG BORE XD Hydraulic Cylinder Assist Steering Kit |
| Cylinder Stroke | 8.0 Inches Lock-to-Lock |
| Tie Rod Clamp Size | 1.75 Inch |
| Mounting Style | Weld-On Cylinder Mount Tabs |
| Steering Assist Ports | -6 JIC Hydraulic Ports |
| Kit Includes | BIG BORE XD steering gear, hydraulic assist cylinder, high-performance pump kit, reservoir, fluid cooler, hoses, fittings, tie rod clamp, mounting hardware |
| Shipping Info | Ships direct from manufacturer or authorized distributor |
| Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Frequently Asked Questions
What does a cylinder assist steering system do?
A cylinder assist steering system uses a hydraulic ram attached to the steering linkage to reduce steering effort when turning large tires or navigating extreme terrain.
Why upgrade to the PSC BIG BORE XD steering system?
PSC’s BIG BORE XD steering gear provides increased steering torque, improved steering feel, and stronger internal components designed to handle the demands of off-road vehicles with oversized tires and heavy-duty axles.
Will this steering kit work with stock Jeep JK axles?
This configuration is designed for aftermarket axles with 8.0 inch lock-to-lock steering geometry such as Dana 60 conversions. Vehicles with stock axles may require a different PSC configuration.
Is everything needed for installation included?
Yes. PSC BIG BORE XD steering kits include the steering gear, power steering pump system, assist cylinder, hoses, fittings, brackets, and installation hardware for a complete steering upgrade.
What tire sizes is this system designed for?
PSC engineered this steering system to handle extreme off-road setups including Jeeps running tires up to 44 inches with upgraded axles and locking differentials.
