Product Description
The PSC SK689R36JP3-8.0W-2.0 Cylinder Assist Steering Kit is a complete high-performance steering upgrade designed specifically for 2020+ Jeep Gladiator JT and Wrangler JL models equipped with the 3.6L Pentastar Non-eTorque engine and aftermarket front axles. This system replaces the factory electro-hydraulic steering components with PSC’s proven hydraulic assist system, dramatically improving steering control, durability, and torque output when running oversized tires and heavy off-road setups. At the core of this system is PSC’s Big Bore XD steering gearbox, engineered to provide increased steering torque and improved reliability under extreme load conditions. The included 8.0-inch stroke hydraulic assist cylinder works with PSC’s high-flow mechanical steering pump to dramatically reduce steering effort while maintaining excellent road feel and control. Designed for aggressive off-road builds, rock crawlers, and high-clearance suspension systems, this kit also includes weld-on axle tabs and a 2.0-inch tie rod clamp to ensure proper mounting on aftermarket axles. The result is a complete steering solution capable of handling large tire setups, locking differentials, and harsh trail conditions without the steering fatigue common in factory systems. Whether you're tackling technical rock trails or building a serious overland Gladiator, the PSC cylinder assist steering system provides the strength, precision, and durability required for extreme steering loads.
Fitment
- 2020+ Jeep Gladiator JT
- 2020+ Jeep Wrangler JL / JLU
- 3.6L Pentastar Non-eTorque engine
- Vehicles equipped with aftermarket front axle assemblies
- Designed for 8.0" lock-to-lock axle applications
- Requires 2.0" tie rod diameter
Specifications for psc SK689R36JP3-8.0W-2.0
| Specification | Details |
|---|---|
| Manufacturer | PSC Motorsports |
| Part Number | SK689R36JP3-8.0W-2.0 |
| UPC | 687927188969 |
| GTIN | 687927188969 |
| Steering Gearbox | PSC Big Bore XD Steering Gear |
| Cylinder Stroke | 8.0 Inches |
| Tie Rod Clamp Size | 2.0 Inch |
| Axle Mount | Weld-On Cylinder Assist Tabs |
| Included Components | Steering Gearbox, Pump Kit, Assist Cylinder, Hoses, Fittings, Mounting Hardware |
| Shipping Info | Oversized item – ships via ground or freight depending on location |
| Prop 65 | WARNING: Cancer and Reproductive Harm – https://www.P65Warnings.ca.gov |
Frequently Asked Questions
What does the PSC cylinder assist steering kit do?
A PSC cylinder assist steering system adds a hydraulic assist cylinder to the steering linkage, dramatically reducing steering effort and improving control when running oversized tires or aftermarket axles.
Does this kit include everything needed for installation?
Yes. The PSC SK689R36JP3-8.0W-2.0 kit includes the Big Bore XD steering gearbox, hydraulic assist cylinder, steering pump kit, hoses, fittings, brackets, and installation hardware.
Is this compatible with factory axles?
This specific configuration is designed for vehicles running aftermarket front axles with an 8.0-inch lock-to-lock measurement and a 2.0-inch tie rod diameter.
Why upgrade the Jeep JL/JT steering system?
Factory steering systems struggle with oversized tires and heavy off-road loads. PSC hydraulic assist steering dramatically improves steering torque, reduces stress on steering components, and provides better control in extreme terrain.
Is this kit recommended for rock crawling builds?
Yes. PSC steering systems are widely used in competitive off-road and rock crawling vehicles due to their reliability, high torque output, and ability to handle extreme steering loads.
