Product Description
The PSC SK337 Cylinder Assist Steering Kit is a complete high-performance hydraulic steering upgrade engineered specifically for GM 2500HD and 3500 trucks running a straight axle conversion. Designed by PSC Steering Components, this system dramatically improves steering control and reduces steering effort when running oversized tires, locking differentials, heavy front axles, or extreme off-road setups. PSC Cylinder Assist Steering Kits are engineered to handle the increased torque loads created by larger tires, upgraded axles, and traction devices while maintaining excellent steering feel on the road. This system distributes steering load between the steering gearbox and hydraulic cylinder, preventing premature wear while dramatically improving turning power and vehicle control. Ideal for solid axle swap trucks, rock crawlers, heavy towing builds, and lifted off-road rigs, the SK337 delivers superior steering authority without the harsh steering feedback common with traditional steering setups.
Fitment
- 1999.5-2006.5 GM 2500HD / 3500HD 4WD
- Duramax LB7 / LLY / LBZ trucks
- Vehicles equipped with straight axle conversion (Dana 60 solid axle swap)
- Designed for trucks running large off-road tires and high-load steering systems
Kit Includes
- SG039R Big Bore Cylinder Assist Steering Gearbox
- PK1405-12 High Performance Pump Kit with Remote Reservoir
- SC2201K Steering Assist Cylinder Kit (1.75" x 8" stroke)
- HK2020 Steering Assist Cylinder Hose Kit
- SWEPCO 715 Power Steering Fluid
Specifications for PSC SK337
| Specification | Details |
|---|---|
| Manufacturer | PSC Steering Components |
| Part Number | SK337 |
| Product Type | Hydraulic Cylinder Assist Steering Kit |
| UPC | 687927185838 |
| GTIN | 687927185838 |
| Shipping Info | Typically ships freight or oversized ground depending on warehouse |
| Prop 65 | WARNING: Cancer and Reproductive Harm – https://www.P65Warnings.ca.gov |
Frequently Asked Questions
What does the PSC SK337 steering kit improve?
The SK337 dramatically reduces steering effort and improves control when running large off-road tires, heavy axles, locking differentials, or high-traction rock crawling setups.
Is this kit designed for stock suspension trucks?
No. The SK337 is designed specifically for trucks that have undergone a straight axle conversion using a Dana 60 front axle.
Does this kit include the steering cylinder?
Yes. The kit includes a PSC steering assist cylinder with hardware, hydraulic hoses, steering gearbox, and pump kit.
Can this kit be used for daily driving?
Yes. PSC cylinder assist steering systems maintain good road feel and are commonly used on daily driven trucks with heavy off-road modifications.
Is additional cooling recommended?
PSC recommends installing a power steering fluid cooler to prevent pump overheating during heavy off-road use.
