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BIG BORE XD® Steering Gear - GMC 2500/3500 4WD (1988-1998)

BIG BORE XD® Steering Gear - GMC 2500/3500 4WD (1988-1998)

$1,095.00
$1,095.00
Sale Out of Stock
Shipping calculated at checkout.

Part Number: SG840

Gear Type

The factory steering on your late-80s to late-90s GM truck wasn’t built for today’s big tires and heavy-duty use. That’s where the BIG BORE XD Steering Gear comes in. With a beefed-up 45mm sector shaft, larger bearings, and an oversized piston, this gear delivers tighter steering, more torque, and way better control—on the road or off it.

Whether you’re running stock steering or adding hydraulic assist, we’ve got the right gear for your build.

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About:About:

Why you’ll love it

  • Stronger Where It Counts: 45mm sector shaft and upgraded bearings eliminate deflection. 
  • Better Steering Feel: Variable ratio for easy parking and stable highway driving. 
  • Built for Big Tires: Increased torque output for heavy-duty setups.

Tech InfoTech Info

Heads‑up for installers

  • Inside-the-frame, 3-bolt mounting pattern.
  • Requires a four-slot pitman arm.
  • Compatible with OEM hoses and pitman arms.

Fitment

GM 2500/3500 4WD (1988–1998)

Specs

  • Turning Ratio: 13/16:1 (3.5 turns lock-to-lock)
  • Input Shaft: GM DD with 3/4-30 spline adapter
  • Port Type: Metric O-Ring
  • Mounting: Inside-the-frame, 3-bolt pattern

What’s included

  • BIG BORE XD® Steering Gear (choose your option below)
  • Mounting hardware

Options:

  • Standard BIG BORE XD® Steering Gear – Direct bolt-in upgrade for factory steering
  • BIG BORE XD® Cylinder Assist® Steering Gear – Pre-drilled and tapped for hydraulic assist
California Prop 65 Warning

California 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, go to www.P65Warnings.ca.gov