PSC SG851R Big Bore XDR Cylinder Assist Steering Gear, Dodge RAM 2500/3500 (94-02)

The factory steering on 2nd Gen Dodge Ram trucks? Let’s be honest—it’s weak. That’s why PSC built the BIG BORE XD Steering Gear, a serious upgrade designed to eliminate steering wander and give you the confidence to handle big tires, heavy loads, and tough terrain.

This gear is based on the newer Dodge XD platform, modified for a direct bolt-in fit on your 1994-2002 Ram 2500/3500. With a beefed-up 45mm sector shaft, larger bearings, and an 80 mm piston, it delivers rock-solid steering and eliminates the need for aftermarket braces. Whether you’re daily driving or towing heavy, this is the fix your truck has been waiting for.

This listing is PSC part number SG851R (Gear Type: Cylinder Assist).

Features

• No More Steering Wander: Bigger bearings and a stronger sector shaft keep everything tight.
• Built for Abuse: Handles big tires, towing, and off-road punishment.
• Direct Bolt-In: Works with OEM hoses and pitman arm—no crazy mods needed.

Specifications

• Part Number: SG851R
• Gear Type: Cylinder Assist
• 45 mm sector shaft with oversized bearing
• 80 mm internal piston
• 16:1 steering ratio (3.25 turns lock-to-lock)
• Compatible with OEM and aftermarket pitman arms
• OEM cross reference: SG851: Mopar 52113500AC

Fitment

• Dodge Ram 2500/3500 (1994-2002), 4WD only

What’s Included

• BIG BORE XD Steering Gear (choose your option below)
• Mounting hardware and spacers
• Standard BIG BORE XD Steering Gear - For stock or mild builds
• BIG BORE XD Cylinder Assist® Steering Gear - Pre-drilled and tapped for hydraulic assist
• Scratch & Dent BIG BORE XD Steering Gear - Same performance, cosmetic blemishes, discounted price