PSC SK320 Big Bore XD Cylinder Assist Steering Kit, GM 4WD (80-94) w/ Crossover (XDR)

If you’ve got a GM 4WD truck from the 70s, 80s, or early 90s and you’re running big tires or wheeling hard, you’ve probably felt that steering strain. This kit helps take the load off your steering box and gives you smooth, predictable control — even in rocks, ruts, and deep mud.

Designed around a crossover steering configuration, each kit is matched to your truck’s year range and pairs with PSC’s Cylinder Assist for added strength and control. Whether you’re restoring a classic or building a trail-ready rig, it’s steering that simply works.

This listing is PSC part number SK320 (Vehicle | Model Year: 1980-1994).

Specifications

• Part Number: SK320
• Vehicle | Model Year: 1980-1994
• Cylinder Stroke: Varies by kit (6.75in, 7.5in, or 8.0in)
• Clamp Sizes: 1-1/4in, 1-3/8in, 1-1/2in
• Steering Gear: PSC XDR or Standard
• Designed for GM Dana 44 / 10-Bolt axles

Fitment

• GM 4WD Trucks
• 1970-1976 (Standard Steering Gear)
• 1977-1979 (XDR Steering Gear)
• 1980-1994 (XDR Steering Gear)

What’s Included

• XDR or Standard Steering Gear (based on year)
• Cylinder Assist Axle Kit
• Tie Rod Clamp
• Crossover Steering Linkage
• All necessary hardware