PSC SK251 Big Bore XD Cyl Assist Kit, Jeep TJ/LJ 4L (03-06), Ford Super-Duty Dana 60-Bolt-On

Designed for Jeep TJ and XJ applications equipped with a Ford Dana 60 front axle, these PSC steering kits provide the components needed to upgrade steering performance for larger tires and demanding off-road use.

Available in configurations ranging from steering gear and pump upgrades to complete Cylinder Assist® systems, each kit includes PSC components engineered to work together as a matched steering system. Depending on the kit selected, components may include a PSC steering gear, high-performance pump, reservoir, cooler, hose assemblies, fittings, mounting hardware, and PSC 715 Series Fluid.

Built for reliable performance on the trail and engineered for proper fitment, these kits provide the steering control and durability required for serious off-road applications. Weld-on options are available for custom installations.

This listing is PSC part number SK251 (Actual Steering Measurement: 8in No-Weld).

Features

• Brand-new PSC components — no reconditioned parts
• Designed for Jeep TJ/XJ with Ford D60 axles
• Built to handle real-world trail abuse
• Complete kits with everything you need
• Cylinder Assist options for serious steering control

Specifications

• Part Number: SK251
• Actual Steering Measurement: 8in No-Weld
• Stroke: 6.0in
• Steering Gear: BIG BORE XDR (SG400R)
• Pump Kit: High Performance Pump Kit for TJ/LJ 4.0L (PK40JP2)
• Axle Kit: Cylinder Assist w/ 6.0in Stroke (CAK400R-6)

Installation Notes

• Some kits include weld-on components. Make sure your axle setup matches the application. All hardware and fittings are included, but professional installation is recommended for best results.
• Ideal for: Off-roaders who want better steering control, Jeep owners upgrading to Cylinder Assist®, Trail rigs with big tires and heavy-duty suspension
• Recommended for: Jeep TJ and XJ builds running Ford D60 front axles, High-articulation suspension setups, Larger tires and off-road steering upgrades

Fitment

• Jeep TJ (1997-2006)
• Jeep XJ Cherokee (1984-2001)
• Must be equipped with Ford D60 front axle

What’s Included

• Each kit includes:
• PSC Silver Steering Gear
• PSC Pump Kit
• Cylinder Assist Kit (SK250, SK251, SK252, SK253)
• Reservoir (branded or unbranded depending on kit)
• Cooler, hoses, clamps, mounts, fittings
• 4 bottles of PSC 715 fluid