PSC Full Hydraulic Steering Kit w/ Type II Pump & Single Ended Ram (GM V8)

Designed For:

• GM V8 engine applications - 1980 and newer
• Type II / aftermarket accessory-drive configurations
• Vehicles running tires over 40"
• Full-hydraulic steering conversions
• Dana 60 and similar heavy-duty steering axle applications

Common Applications:

• Rock Crawlers
• Rock Bouncers
• Ultra4 Race Cars
• Trail Buggies
• Custom Tube Chassis Vehicles
• Competition Off-Road Vehicles
• Large-Tire Custom Axle Builds

Installation Notes:

• This is a true full-hydraulic steering system and does not use a conventional steering gearbox or mechanical drag link between the steering wheel and axle.
• The 160cc orbital valve controls steering direction and sends hydraulic pressure directly to the steering cylinder.
• Welding and fabrication are typically required for steering cylinder mounting.
• Cylinder position must be matched to the axle's steering geometry and available travel.
• Verify the 8" cylinder stroke is compatible with the steering travel of the axle before final installation.
• Steering stops must limit axle travel before the hydraulic cylinder reaches the end of its stroke.
• Verify Type II pump bracket compatibility with the engine's accessory drive.
• Hydraulic hoses must be protected from exhaust heat, sharp edges, suspension travel, and other moving components.
• The hydraulic system must be properly filled, bled, and checked for leaks before operation.
• Full-hydraulic steering is intended primarily for dedicated off-road and competition vehicles.

What is full hydraulic steering?

Full hydraulic steering removes the conventional mechanical steering connection between the steering wheel and axle. The steering wheel operates an orbital steering control valve, which directs hydraulic fluid to the axle-mounted steering cylinder. The hydraulic cylinder then provides the force that turns the tires.

Does the FHK200TC require a steering gearbox or drag link?

No. The FHK200TC is a true full-hydraulic steering system. The included 160cc orbital valve replaces the steering-box control function, so the system does not rely on a conventional steering gearbox or mechanical drag link to steer the axle.

Why does the FHK200TC use a single-ended steering cylinder?

Single-ended and double-ended cylinders are both used in full-hydraulic steering systems. The FHK200TC uses PSC's SC2205K single-ended cylinder as part of its complete full-hydraulic configuration. The cylinder style changes how the ram is packaged and mounted, but it does not mean a steering gearbox is required.

Why use full hydraulic steering with large tires?

Large tires create substantial steering loads, especially when the axle is locked, a tire is wedged against an obstacle, or the suspension is heavily articulated. Full hydraulic steering provides the hydraulic force needed to control the tires without relying on a conventional steering box and drag link.

Why does this kit use a 160cc orbital valve?

The 160cc steering control valve provides a controlled steering response for technical off-road driving. Orbital displacement works together with cylinder volume and pump flow to determine how quickly the steering reacts to steering-wheel input.

What steering cylinder is included?

The FHK200TC uses PSC's SC2205K single-ended hydraulic steering cylinder with a 2.5" bore and 8" stroke. The cylinder must be mounted so its available travel correctly matches the axle's steering range.

Will this work with a Dana 60?

Yes. Dana 60 steering axles are a common application for this type of full-hydraulic system. Because this is not a vehicle-specific bolt-on steering kit, the cylinder mounts and steering geometry still need to be designed around the exact axle, knuckles, steering arms, and suspension being used.

Can this system be used for rear steering?

Full-hydraulic steering is commonly used in rear-steer axle systems, but a complete rear-steer configuration requires the hydraulic controls, plumbing, cylinder mounting, and steering strategy to be designed around that application. This kit should not be assumed to include every component required for a complete rear-steer conversion.

What is the difference between full hydraulic steering and hydraulic assist?

Hydraulic assist retains the steering gearbox, pitman arm, and mechanical drag link while adding a hydraulic cylinder to reduce the load on those components. Full hydraulic steering eliminates the mechanical steering connection to the axle and uses an orbital valve and hydraulic cylinder to control steering directly.

Does installation require fabrication?

Yes. Most custom axle and buggy installations require fabrication and welding to correctly mount the steering cylinder. Proper cylinder position, steering travel, axle geometry, hose routing, and steering stops are all critical to a reliable installation.

Is this intended for a street-driven vehicle?

The FHK200TC is intended primarily for dedicated off-road and competition vehicles. Builders should verify all applicable vehicle, competition, and local requirements for their specific application.