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  • Black PSC steering gear assembly with a threaded sector shaft and two metal washers, displayed on a white background for a clear product view.
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BIG BORE XD® Steering Upgrades - Dodge RAM 2500/3500/4000 (2003-2008)

BIG BORE XD® Steering Upgrades - Dodge RAM 2500/3500/4000 (2003-2008)

$1,195.00
$1,195.00
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Part Number: SG853

Type

Got a Dodge Ram with that sloppy steering feel? Yeah, we know the struggle. The factory box just can’t keep up, and that “Dodge steering wander” is enough to drive anyone crazy. That’s why we built the BIG BORE XD Steering Gear—a heavy-duty, brand-new replacement that bolts right in and fixes the problem for good.

We took inspiration from Mopar’s “Big Box” and made it even better. Bigger bearings, beefier internals, and zero core charge. Just swap it in, hook up your factory lines and Pitman arm, and you’re back on the road with steering that feels tight and confident.

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About:About:

Why you’ll love it

  • No More Steering Wander: BIG BORE XD gear features a 45mm sector shaft bearing (vs. 35mm stock) to eliminate slop.
  • Built for Bigger Builds: Cylinder Assist Kit handles the extra torque from oversized tires, lockers, and heavy-duty axles.
  • Road-Friendly Feel: Tuned for daily driving—no twitchy oversteer or arm-wrestling the wheel.
  • Bolt-On or Weld-On Options: Choose what fits your build and install style.
  • Zero Core Charge: All-new parts, no rebuilds, no hassle.

Tech InfoTech Info

Heads‑up for installers

  • Gear works with OEM pressure/return lines and 2003–2008 Pitman arm
  • Cylinder Assist Kit requires welding
  • Not compatible with most aftermarket steering braces (including SB300K)
  • PDF and video install guides available

Fitment

  • Dodge RAM 2500/3500 (2WD/4WD, Gas or Diesel): 2003–2008
  • Dodge RAM 1500 Mega Cab 4x4: 2005–2008
  • Dodge RAM 4000 (Mexico): 2003–2008 (Cylinder Assist Kit only)

Use it with

  • 37"+ tires
  • Locking differentials
  • Aftermarket axles

Specs

  • BIG BORE XD Gear: 45mm bearing, direct fit for Mopar 68170214AB
  • Cylinder Assist Kit: Weld-on tower, pre-assembled hoses, PSC-tuned valving
  • All-new components, no core charge

What’s included

BIG BORE XD Steering Gear – New

  • BIG BORE XD Gear with PSC Tuned Valving

BIG BORE XD Cylinder Assist® Steering Gear – New

  • BIG BORE XD Gear with PSC Tuned Valving
  • Cylinder Assist Tower

BIG BORE XD Cylinder Assist Kit – Weld-On

  • PSC Weld-On Assist Cylinder Tower
  • Assist Cylinder

SupportSupport

Installation Video

Installation Video Thumbnail

OEM Cross Reference

Direct replacement for Mopar 68170214AB - SG853

Overall rating: 5.0 / 5 from 1 reviews.

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Reviews

My stock box was not

"My stock box was not really loose,but I had just upgraded to the 4th gen steering linkage and just decided to do it all. This steering gear is awesome! My 2500 handles almost as good as my wife's 2017 Rebel 1/2 ton."

— John M. (5/5)

Q&A

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