Product Description
Take control of oversized tires, locked differentials, and hard trail abuse with the PSC SK310 Cylinder Assist Steering Kit for 1977-1979 GM 4WD trucks equipped with crossover steering. Built for serious off-road use and heavy-duty steering correction, this complete PSC system is engineered to reduce steering box stress, improve turning force, and maintain stable, confident road feel without excessive oversteer. For GM builders running larger tires and demanding better steering precision on the trail, in mud, on rocks, or on the street, the SK310 is a premium upgrade that helps transform vague or overloaded steering into a much more controlled system. This kit is intended for 1977-1979 GM 4WD applications using a crossover steering setup. It is designed to deliver stronger steering authority for trucks with larger-than-stock tires, upgraded axles, and demanding terrain. PSC hydraulic assist systems are known for preserving a familiar steering feel while adding the support needed for aggressive off-road and work-truck use.
Fitment
- 1977-1979 GM 4WD trucks with crossover steering
- Designed for GM Dana 44 / 10-Bolt axle applications per PSC GM 4WD kit specs
- Catalog fitment references also note use with crossover steering and Dana 60 front axle applications
- Common fitment examples include 1977-1979 Chevrolet K10 and related GM 4WD square body applications
Important Fitment Notes:
- Requires a crossover steering configuration
- Axle tabs for the assist cylinder mount must be welded on during installation
- Some trimming or bracket adjustment may be needed depending on lift height and build configuration
- Application-specific steering and suspension geometry should always be verified before installation
Specifications for PSC SK310
| Specification | Details |
|---|---|
| Part Number | SK310 |
| Product Type | Hydraulic Steering Kit / Cylinder Assist Steering Kit |
| UPC | 687927179127 |
| GTIN | 687927179127 |
| Shipping Info | Calculated at checkout |
| Steering Box Included | Yes |
| Steering Pump Included | Yes |
| Steering Cylinder Included | Yes |
| High-Pressure Hoses Included | Yes |
| Steering Cylinder Travel | 8.000 in. |
| Maximum Tire Diameter | 42.00 in. |
| Prop 65 | WARNING: This product can expose you to chemicals including lead and di(2-ethylhexyl) phthalate, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit https://www.P65Warnings.ca.gov |
Frequently Asked Questions
What does the PSC SK310 steering kit do?
The PSC SK310 adds hydraulic cylinder assist to your GM 4WD steering system to reduce steering effort, improve control with larger tires, and decrease stress on the steering gear during off-road and heavy-use driving.
What vehicles does PSC SK310 fit?
This kit is built for 1977-1979 GM 4WD applications using crossover steering. It is commonly associated with classic GM square body 4WD builds and should be verified against your exact axle, steering linkage, and suspension setup.
Does this kit require crossover steering?
Yes. The SK310 is specifically intended for vehicles already set up with crossover steering.
Will welding be required during installation?
Yes. PSC notes that the axle tabs for the cylinder mount will need to be welded during installation.
Is this a complete kit?
Yes. Product sources indicate the system includes the steering gear, cylinder assist axle kit, tie rod clamp, crossover steering linkage, hardware, pump, hoses, and related assist components depending on the matched application package.
