Description
Running lockers, big axles, and 40s on your JK? Your factory steering isn’t going to cut it. PSC’s BIG BORE XD Cylinder Assist Steering Kit is the ultimate upgrade for Jeep JK/JKU owners who demand serious steering performance. Designed for rigs with locking differentials, aftermarket axles, and tires up to 44", this kit delivers the torque and control you need on the toughest trails.
This complete system includes our BIG BORE XD Steering Gear, a high-performance pump kit with remote reservoir, a Cylinder Assist kit, and all the hardware you need for a clean install. Say goodbye to steering play, pump overheating, and white-knuckle turns when your lockers are engaged.
APPLICATION:
2012-18 Jeep JK 3.6L with OEM Axle
KIT INCLUDES:
SG688R Big Bore XD Steering Gearbox
High Volume Pump and Reservoir Kit with Fluid Anti-Splash Valve
Upgraded OEM-Style High Pressure Hose Assembly
Fluid Cooler Kit
Steering Assist Cylinder
No-Weld Assist Cylinder Mounting Bracket with Hardware
Assist Cylinder Installation Hose Kit
Tie Rod Clamp
SWEPCO 715 Power Steering Fluid, QTY 3
WARNING!
Use HWK-688-PP hardware kit when installing a Synergy MFG Track Bar and Sector Shaft Brace with this product.
Using the Factory or the standard PSC supplied bolts with the Synergy MFG Track Bar and Sector Shaft Brace could result in steering gearbox case failure.
NOTES:
The larger size of the BIG BORE XD Steering Gearbox may prohibit the use of some aftermarket track bars.
To achieve the best on-the-road driveability, the recommended front axle caster setting is 7 degrees POSITIVE.
A high steer or drag link flip kit may need to be installed on vehicles with more than four (4) inches of lift.
There are no drop Pitman arms on the market that fit the Big Bore XD Steering Gearbox.
PSC recommends using SWEPCO 715 Power Steering Fluid in all Cylinder Assist Kits.
