Steering and Components› Rack and Pinions, Steering Boxes and Components

PSC Motorsports

~(30 lbs. 13X10X7)~ Big Bore XD Cylinder Assist Steering Gearbox 2003-06 Jeep LJ/TJ PSC Performance Steering Components

$1,150.00

SKU: P02B SG400R

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The PSC Motorsports SG400R is a high-performance steering gearbox designed for 2003-2006 Jeep Wrangler TJ and LJ models. It's an extreme-duty solution that enhances steering control, reduces effort, and improves responsiveness, especially for off-road applications. This 'Big Bore XD Cylinder Assist Steering Gearbox' features a larger ratio, robust internal components, and improved seals for durability.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandPSC Motorsports
Part NumberP02B SG400R

Videos

Beef up your Jeep Steering, Rundown on the PSC Big Bore Box

Beef up your Jeep Steering, Rundown on the PSC Big Bore Box
Ultimate Jeep Steering Upgrade PSC Hydro Assist FULL Install and Test Drive!

Ultimate Jeep Steering Upgrade PSC Hydro Assist FULL Install and Test Drive!
PSC Hydro Assist Steering VS PSC Standard Steering Box | What's Best?

PSC Hydro Assist Steering VS PSC Standard Steering Box | What's Best?
Full Hydraulic vs. Hydraulic-Assist Steering: PSC (Performance Steering Components)

Full Hydraulic vs. Hydraulic-Assist Steering: PSC (Performance Steering Components)
Ultimate Jeep Steering Upgrade PSC Hydro Assist FULL Install and Test Drive!

Ultimate Jeep Steering Upgrade PSC Hydro Assist FULL Install and Test Drive!

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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