PSC Motorsports SK689R36JP2-8.0W-2.0 Cylinder Assist Steering Kit Jeep JL 3.6L 8.0" Stroke

The PSC Motorsports SK689R36JP2-8.0W-2.0 Cylinder Assist Steering Kit is a complete high-performance hydraulic steering upgrade designed for 2018-2023 Jeep Wrangler JL models equipped with the 3.6L non-eTorque engine and aftermarket front axles. This comprehensive system replaces the factory computer-controlled electro-hydraulic steering with PSC's proven mechanical belt-driven power steering setup, delivering superior control and reliability for vehicles running larger tires and modified suspensions.

Key Features:

• Big Bore XD Cylinder Assist steering gearbox upgrades the stock 70mm piston to 80mm, providing significantly more torque to turn larger tires
• Enlarged sector shaft diameter from 42mm to 45mm increases strength and durability
• 8.0" stroke hydraulic assist cylinder designed for aftermarket axles with extended travel requirements
• 2.0" tie rod clamp accommodates upgraded heavy-duty tie rods commonly found on aftermarket axle assemblies
• High-flow mechanical belt-driven pump conversion replaces the stock electric pump, eliminating overheating issues
• Includes OE-spec pitman arm and nut to fit the larger 45mm sector shaft
• Complete master hose assembly kit, remote reservoir, fluid cooler, anti-splash valve, and SWEPCO 715 power steering fluid included

Kit Includes:

• SG689R Big Bore XD-JL Cylinder Assist Steering Gearbox
• PK36JP2 3.6L Non-eTorque High Flow Mechanical Pump Conversion Kit
• CAK689R-8.0W 8.0" Stroke Cylinder Assist Axle Kit with Hardware
• TRCL2.0 2.0" Tie Rod Clamp for Cylinder Assist
• Fluid cooler kit and anti-splash valve
• All required hoses, fittings, and hardware
• SWEPCO 715 power steering fluid

Performance Benefits:

• Eliminates excessive on-center steering wheel play and improves road feedback
• Prevents electro-hydraulic pump overheating during demanding off-road use
• Dramatically increases turning torque output for tire sizes over 35 inches
• Significantly reduces steering effort when locking differentials are engaged
• Provides ultimate steering stabilization for both daily driving and extreme off-road conditions

Important Installation Notes:

• A Tazer JL programmer is required to override the OE electro-hydraulic pump functions when installing this mechanical pump conversion
• Use HWK-689-PP hardware kit when installing with Synergy MFG Track Bar Brace or similar products
• The larger Big Bore XD-JL gearbox may prohibit the use of some aftermarket track bars
• 46mm pitman arm nut socket required for installation
• Professional installation recommended; mechanical expertise required
• Recommended front axle caster setting is 7 degrees positive for optimal on-road performance

This complete bolt-in system is engineered specifically for Jeep JL owners who have upgraded to aftermarket axle assemblies and demand maximum steering performance. The 8.0" stroke cylinder is ideally suited for vehicles with Dana 60 or similar aftermarket axles that require extended cylinder travel compared to factory specifications.