PSC Rear Steer Full Hydraulic Accessory Kit
FHRS1
The PSC Full Hydraulic Rear Steer Accessory Kit provides the control valve, hydraulic plumbing, steering linkage components, and installation hardware needed to complete a secondary rear steering system on a custom off-road vehicle. Designed for 2.5", 2.75", and 3.0" double-ended hydraulic steering cylinders, this package brings together the major accessories required to add rear steering to rock crawlers, rock bouncers, Ultra4 cars, and custom tube chassis buggies.
Rear steer gives the driver additional control over axle positioning, turning radius, and vehicle placement when navigating tight rock sections, technical climbs, and obstacles where front steering alone may not be enough. This PSC package combines a joystick-operated rear steer control valve, premium hydraulic hoses and fittings, a check valve, heavy-duty tie rod linkage, and cylinder clevis components into one matched system. Instead of sourcing each part separately, builders can plan their rear steer installation around components selected to work together.
Includes:
- (1) PSC FHDV-STD Rear Steer Control Valve with Joystick
- (1) PSC CV300 -8 AN One-Way Check Valve
- (1) PSC HK2089-1 Premium Rear Steer Hydraulic Hose & Fitting Kit
- (1) PSC SC16 Cylinder Clevis Joint Kit
- (1) PSC TR120HD Heavy-Duty Tie Rod Link Kit
- PSC TRB10 Rockwell Tapered Adapter Bushings
Important Notes:
- Select the kit that matches your double-ended cylinder size.
- FHRS1: 2.5" / 2.75" cylinder applications.
- FHRS2: 3.0" cylinder applications.
- Hydraulic steering cylinder, pump, and reservoir are not included in this accessory package.
- Custom mounting, hydraulic routing, and steering system setup are required.
Specifications
| Specification | Details |
|---|---|
| Manufacturer | PSC Motorsports |
| Product Type | Full Hydraulic Rear Steer Accessory Kit |
| Steering Application | Secondary Full Hydraulic Rear Steering |
| Cylinder Compatibility | 2.5", 2.75", or 3.0" Double-Ended |
| Control Valve | PSC FHDV-STD Joystick-Operated Rear Steer Valve |
| Control Valve Pressure Rating | 3,600 PSI Continuous |
| Control Valve Maximum Flow | 10 GPM |
| Control Valve Relief | Adjustable Pressure Relief Valve |
| Joystick Orientation | Vertical or Horizontal |
| Check Valve | PSC CV300 -8 AN |
| Hydraulic Hose Kit | PSC HK2089-1 Premium Rear Steer |
| Hydraulic Hose Type | High-Pressure with Crimped Fittings |
| Cylinder Clevis Kit | PSC SC16 |
| Tie Rod Link Kit | PSC TR120HD Heavy-Duty |
| Tapered Adapter Bushings | PSC TRB10 Rockwell |
| Steering Cylinder Included | No |
| Installation | Custom Hydraulic Plumbing & Steering Assembly |
| Primary Application | Custom Off-Road Rear Steer Systems |
Available Variants
| Part Number | Cylinder Size |
|---|---|
| FHRS1 | 2.5" / 2.75" Double-Ended Cylinder |
| FHRS2 | 3.0" Double-Ended Cylinder |
Fitment
Designed For:
- Custom full hydraulic rear steering systems
- Rock crawlers and rock bouncers
- Ultra4 and competition off-road buggies
- Custom tube chassis vehicles
- Rear-steer Dana 60 and fabricated steering axles
- Rockwell rear steering axle applications
- PSC double-ended hydraulic steering cylinders
Fitment Notes:
- Universal accessory package for custom rear steering applications.
- FHRS1 is designed for 2.5" and 2.75" double-ended cylinder configurations.
- FHRS2 is designed for 3.0" double-ended cylinder configurations.
- Designed to integrate with compatible PSC full hydraulic steering systems.
- Verify cylinder bore size, rod dimensions, clevis connections, and steering linkage compatibility before ordering.
- Rockwell tapered bushings are included; other axle configurations may require different steering arm adapters or mounting hardware.
- Verify hydraulic pump flow and pressure compatibility with the rear steer control valve.
- Plan joystick placement for safe, accessible operation from the driver's seat.
- Route hydraulic hoses away from exhaust heat, tires, suspension links, and moving drivetrain components.
- Cycle the rear axle through full steering and suspension travel to verify hose clearance, cylinder stroke, and steering linkage geometry.
- Use sealant only on connections that require it; follow the fitting manufacturer's instructions for O-ring and flare-style connections.
Additional Components Required:
- Compatible double-ended hydraulic steering cylinder
- Hydraulic pump and fluid reservoir system
- Compatible rear steering axle and mounting brackets
- Hydraulic steering fluid
- Additional application-specific fittings or hardware as required
FAQ
What does a full hydraulic rear steer accessory kit include?
This PSC kit combines the rear steer control valve, check valve, premium hydraulic hose and fitting kit, cylinder clevis components, heavy-duty tie rod linkage, and Rockwell tapered adapter bushings. It provides the major control and plumbing accessories needed to complete a secondary rear steering system around a compatible double-ended cylinder.
What is the difference between FHRS1 and FHRS2?
The difference is the intended hydraulic cylinder size. FHRS1 is configured for 2.5" and 2.75" double-ended cylinders, while FHRS2 is configured for 3.0" double-ended cylinders. Select the version that matches your rear steering cylinder and verify the complete linkage and mounting configuration before ordering.
Does this kit include the rear steering cylinder?
No. This is a rear steer accessory kit rather than a complete cylinder and pump package. The double-ended steering cylinder, hydraulic pump, reservoir, and any additional axle-specific mounting components must be supplied separately.
How is the rear steering controlled?
The included PSC FHDV-STD rear steer control valve uses a joystick to direct hydraulic fluid to the rear steering cylinder. The valve provides progressive steering control and can be mounted with the joystick oriented vertically or horizontally to suit the cockpit layout.
Can this kit be used with a Rockwell rear steering axle?
Yes. The package includes PSC TRB10 Rockwell tapered adapter bushings and is suitable for compatible Rockwell rear steer applications. Final fitment depends on the steering arms, cylinder mounting, tie rod connections, and complete axle configuration.
Will this work with a Dana 60 or custom rear steering axle?
Yes. This is a universal rear steer accessory package that can be incorporated into custom Dana 60, fabricated axle, and competition steering systems. Builders must verify the steering arm connection, cylinder mounting, hydraulic requirements, and linkage geometry for their specific axle.
What should I check when plumbing the rear steer system?
Confirm pump flow, pressure ratings, hose lengths, fitting compatibility, and control valve placement before installation. Route hoses with enough clearance for full suspension articulation and steering travel, avoiding sharp bends, abrasion points, exhaust heat, and moving components. Follow PSC's installation procedures when bleeding and testing the system.
Why add rear steering to an off-road buggy?
Rear steering allows the driver to change the rear axle's direction independently of the front axle, helping position the vehicle through tight obstacles and technical terrain. When properly configured, it can reduce the need for repeated repositioning and provide additional control over the vehicle's path during difficult rock crawling maneuvers.
