PSC Full Hydraulic Steering Kit w/ Type II Pump & Double Ended Ram (GM V8)
FHK100TC
The PSC FHK100TC Full Hydraulic Steering Kit is a complete steering system for dedicated off-road vehicles running tires up to 40". Built around PSC's SP1200X Type II power steering pump, FHCLV120 steering control valve, and SC2212 double-ended hydraulic steering cylinder, this package provides direct hydraulic steering control for rock crawlers, trail buggies, competition vehicles, and custom tube chassis builds.
Unlike hydraulic-assist systems that retain a steering gearbox and drag link, the FHK100TC is a true full-hydraulic steering system. Steering input is sent through the steering control valve, which removes the conventional steering gearbox-to-axle mechanical connection and allows the hydraulic system to control steering directly.
The 2.5" x 8" double-ended cylinder provides balanced steering control at the axle, while the approximately 3.5-turn lock-to-lock configuration gives the driver a predictable steering rate for technical terrain. For vehicles running tires up to 40", the FHK100TC packages the pump, steering control valve, cylinder, column, hoses, mounting components, and steering linkage into one matched full-hydraulic system. For applications running tires over 40", PSC recommends stepping up to the FHK200TC system.
Includes:
- PSC SC2212 Double-Ended Hydraulic Steering Cylinder - 2.5" Bore x 8" Stroke
- PSC SC16 Clevis
- PSC TR100K Tie Rod Kit
- PSC FHCLV120 Steering Control Valve
- PSC FHCLC04 Steering Column
- PSC MB10 Steering Valve Mount
- PSC HK2085 Hydraulic Hose Kit
- PSC SP1200XK Type II TC Power Steering Pump Kit
- Remote Power Steering Reservoir
Specifications
| Specification | Details |
|---|---|
| Manufacturer | PSC Motorsports |
| Part Number | FHK100TC |
| Steering Type | Full Hydraulic Steering |
| Engine Application | GM V8 - 1980 & Newer |
| Recommended Tire Size | Up to 40" |
| Power Steering Pump | PSC SP1200X Type II TC Pump |
| Reservoir | Remote Reservoir Included |
| Steering Control Valve | PSC FHCLV120 |
| Steering Response | Approximately 3.5 Turns Lock-to-Lock |
| Steering Cylinder | PSC SC2212 Double-Ended Cylinder |
| Cylinder Bore | 2.5" |
| Cylinder Stroke | 8.0" |
| Steering Column | PSC FHCLC04 Included |
| Hose Kit | PSC HK2085 Included |
| Steering Gearbox Required | No |
| Mechanical Drag Link Required | No |
| Installation Type | Custom / Fabrication Required |
| Primary Use | Dedicated Off-Road & Competition Vehicles |
Fitment
Designed For:
- GM V8 engine applications - 1980 and newer
- Type II / aftermarket accessory-drive configurations
- Vehicles running tires up to 40"
- Full-hydraulic steering conversions
- Dana 44, Dana 60, and similar steering axle applications
Common Applications:
- Rock Crawlers
- Trail Buggies
- Off-Road Jeeps
- Custom Tube Chassis Vehicles
- Competition Off-Road Vehicles
- Custom Steering 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 steering control valve directs hydraulic pressure to the double-ended steering cylinder to control steering at the axle.
- 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 and accessory-drive compatibility before installation.
- 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.
- For applications running tires over 40", PSC recommends the FHK200TC full-hydraulic steering system.
- Full-hydraulic steering is intended primarily for dedicated off-road and competition vehicles.
FAQ
What is full hydraulic steering?
Full hydraulic steering removes the conventional mechanical steering connection between the steering wheel and axle. The steering wheel operates a hydraulic steering control valve, which directs fluid to the axle-mounted steering cylinder. The hydraulic cylinder then provides the force that turns the tires.
Does the FHK100TC require a steering gearbox or drag link?
No. The FHK100TC is a true full-hydraulic steering system. The steering control valve replaces the conventional steering-box control function, so the system does not rely on a steering gearbox or mechanical drag link to steer the axle.
What tire size is the FHK100TC designed for?
The FHK100TC is recommended for off-road vehicles running tires up to 40". For applications running tires over 40", PSC recommends stepping up to the FHK200TC full-hydraulic steering system.
What steering cylinder is included?
The FHK100TC includes PSC's SC2212 double-ended hydraulic steering cylinder with a 2.5" bore and 8" stroke. The cylinder mounts at the steering axle and directly controls the steering linkage.
Why use a double-ended steering cylinder?
A double-ended cylinder places a steering rod on both sides of the hydraulic piston. This configuration provides equal hydraulic volume and consistent steering characteristics in both directions, making it a popular design for dedicated full-hydraulic off-road steering systems.
How many turns lock-to-lock is the FHK100TC?
The system is configured for approximately 3.5 turns lock-to-lock. This provides a controlled steering rate suited to technical off-road driving while still allowing the driver to make quick steering corrections.
Does this kit include the power steering pump?
Yes. The FHK100TC includes PSC's SP1200XK pump package with the SP1200X Type II TC power steering pump and remote reservoir.
Will the FHK100TC bolt directly onto my axle?
No. This is a universal-style performance steering system intended for custom off-road builds rather than a vehicle-specific bolt-on kit. Cylinder mounting and steering geometry must be designed and fabricated around the specific axle, knuckles, steering arms, suspension, and chassis.
Can I use the FHK100TC with a Dana 60?
Yes. Dana 60 and similar heavy-duty steering axles are common applications for this type of full-hydraulic system. Final cylinder mounting and steering geometry still need to be designed around the exact axle and steering components being used.
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 help move the steering. Full hydraulic steering eliminates the mechanical steering connection to the axle and uses a hydraulic steering control valve and cylinder to control steering directly.
What is the difference between the FHK100TC and FHK200TC?
The FHK100TC is the full-hydraulic package recommended for tires up to 40" and uses PSC's SC2212 double-ended steering cylinder. The FHK200TC is the step-up full-hydraulic package for applications running tires over 40" and uses PSC's larger-tire steering configuration with an SC2205K single-ended cylinder.
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 the FHK100TC intended for a street-driven vehicle?
The FHK100TC is intended primarily for dedicated off-road and competition vehicles. Builders should verify all applicable vehicle, competition, and local requirements for their specific application.
