970-945-7777

  

 

 


 

PSC Steering Components and Kits!

PSC is the best name in offroad steering and is known for quality parts and the knowledge to get all the technical details just right. 

Offroad Design is one of the biggest distributors of PSC components and we have become experts particularly in putting them to use in GM vehicles.  Here's a small sample of what we can do for you:

PSC steering gears are built to be as tough as any steering gear on the market. Our experience has led to developing a line of steering gears that are built with a combination of time proven components that work off-road.  Cases get full machine shop attention; they are honed, trued and sleeved if required. O.E. spool valves are completely dis-assembled, inspected, modified with proper T-bar, reassembled and tested for proper flow balance. All reconditioned components are inspected for wear, and are magnafluxed to find cracks that are not normally visible.  

All steering gears modified for cylinder assist applications are built to flow fluid throughout the circuits as efficiently as possible, this is crucial (tapping the end and top caps leaves a big restriction and ends up really slow, PSC does it right). There is actually a science to getting a cylinder assist system to work at its optimum performance. When it comes to cylinder assist steering gears, PSC builds one of the best you will find. You must achieve a balance, and there's no replacement for over 20 years experience.



PSC starts with a picky inspection process for core boxes and combines the necessary used parts with as many brand new Delphi parts as possible for a premium rebuilt steering gear, these are as close to a brand new steering box as you can get.  The cases are honed and machined true as well as tested to insure proper flow balance.  The reconditioned parts are magnafluxed to check for microscopic cracks.  Includes a billet end cap and cover.  You can't buy a better steering box!

Application 2WD or 4WD Ported for Hydraulic Assist? # of Input Splines Seal for Hoses Core Charge? Price  
               
'67-'76 GM Fullsize Truck 2WD (For Crossover Steering) No 36 Flare Fitting No $350 Buy Now
'67-'76 GM Fullsize Truck 2WD (For Crossover Steering) Yes 36 Flare Fitting No $450 Buy Now
'67-'76 GM Fullsize Truck 4WD No 36 Flare Fitting No $419 Buy Now
               
'77-'79 GM Fullsize Truck 2WD (For Crossover Steering) No 30 Flare Fitting No $350 Buy Now
'77-'79 GM Fullsize Truck 2WD (For Crossover Steering) Yes 30 Flare Fitting No $450 Buy Now
'77-'79 GM Fullsize Truck 4WD No 30 Flare Fitting No $419 Buy Now
               
'80-'87 ('91) GM Fullsize Truck 2WD (For Crossover Steering) No 30 O-Ring No $350 Buy Now
'80-'87 ('91) GM Fullsize Truck 2WD (For Crossover Steering) Yes 30 O-Ring No $450 Buy Now
'80-'87 ('91) GM Fullsize Truck 4WD No 30 O-Ring No $419 Buy Now
               
'88-'98 GM Fullsize Truck Both versions are identical Call Us 30 O-Ring Yes   Call Us


Our PSC boxes come with the nut and lock washer for the sector shaft, but if you don't have one or you need a replacement, we stock them.  The nut is 7/8"-14. 
$9  Buy Now



 

Hydraulic Assist Systems:

Hydraulic assist systems keep your steering box on the frame but pull extra hydraulic power from the box ports to operate a cylinder mounted directly between the tie rod and axle.  This more than doubles your steering power and removes a LOT of stress from the box, frame, and steering linkage.  Or lets you use all the parts just as hard and get through nastier stuff than ever before. (insert evil grin here!)  In some situations, the assist system will even tighten up the steering feel since roughly half your steering power is connected directly to the axle.

Do you need hydro assist?  We hear this question a lot so we put together some guidelines to help you decide if you really need it.  Click HERE to check them out.

Standard hydraulic assist kit for '80-'87 ('91) GM truck: $1154  (Click Picture for larger view)

Standard hydraulic assist kit for '77-'79 GM truck: $1184

Standard hydraulic assist kit for '67-'76 GM truck: $1184

Kit includes an Extreme Duty steering box, assist cylinder with hose kit, brand new high output pump with reservoir can on the pump and a filtered remote reservoir for greater fluid capacity and cooling.

Options include cylinder size (1.5" for more street driven rigs, 1.75" for extra steering power), 2WD/4WD box for crossover or standard steering, different hose fittings for various vehicles, cooler kits and hydroboost ready reservoirs (hydroboost option adds $30). 

Offroad Design offers an upgrade over PSC's "spec" kit that uses a larger feed and return line to the reservoir that helps free up the system and helps speed, this is a $36 option that nearly all of our customers go for.

We also have an optional tie rod clamp, this allows you to attach the cylinder to the tie rod while still allowing you to adjust tow if you need.

Full hydraulic steering systems are also available. 
 
If you're running offroad only, full hydraulic steering may be the way for you.  The biggest advantage for full hydro is the lack of steering linkage, making it easy to put your axle anywhere you want under the vehicle.  It also makes it easy to minimize bump and rollsteer in link suspensions.  We use a PSC double ended ram system in Wally, our shop K5 truggy because we moved the axle about 7 inches forward from stock and using a steering box was no longer an option.  Full hydro kits can be driven on the road but they're what we would consider tolerable, not comfortable.  After a lot of on and offroad miles on different steering systems, if you're driving on the road much, go with an assist system.

A typical 2-1/2" double ended ram system like the one pictured is $1560.
For guys with really big tires and rigs that see extra abuse, we step up to a larger 2-3/4" system for more power!  Those kits are typically $1805.

Offroad Design offers an upgrade over PSC's "spec" kit that uses a larger feed and return line to the reservoir that helps free up the system and helps speed, this is a $36 option that nearly all of our customers go for.

For big trucks with 40"+ tires we have a 2.75" double ended cylinder ram system for even more power!  This kit defaults to the bigger high flow fittings/hoses and typically runs $1805.

Full hydraulic steering has many variables - single-end cylinders, double-end cylinders, various cylinder size options, etc. - so call us at 970-945-7777 and we'll help you build just the right setup for your rig!

Offroad Design also builds steering arms specifically for full hydraulic systems

ALSO, the parts above are just the ones that touch the steering fluid.  We also have ALL the rest of the steering beef you'll need that doesn't touch the fluid: Dana 60 Crossover Steering, Dana 44/10Bolt Crossover Steering, HD Steering Linkage, HD Steering Knuckles, etc.  Check those out and call us at 970-945-7777 for further information.  We can answer any questions you have. 

Choose the category you would like more information on.

Doubler™ Dual Transfer Case
Swaybar Correction/Disconnect™ Kit
Shackle Flip™ Kit for ‘67-up GM trucks
Bolt-In Steering Box Brace Kit
1" Body Lift Kit
Competition Style Motor Mounts
Heavy Duty Front Shackles
Chrome Moly Front Axle Shafts
Drivetrain Upgrades
Blazer Soft Tops
 
Greasable Rear Suspension Bushings
Swaybar Bushing Kits
Body Mounts
Transfer case mounts
Front Upper Shackle Bushing Kit
Spring Bushings
Competition Style Bumpstops
Bushing Assemblies
Tuff Country Suspension