PSC SG688 BIG BORE XD2 STEERING GEARBOX FOR 2007-18 JEEP JK

PSC's Exclusive Big Bore XD2 Power Steering Gearbox is an essential, critical steering component for any Jeep JK with increased torque loads such as large tire sizes up to 37 Inches, locking front differentials, and larger aftermarket axles such as Currie, Dynatrac, and Teraflex.

Applications:

2007-18 Jeep JK 2 Door or 4 Door

Features:

• 85MM Piston for a 35 percent Increase in Torque Output to efficiently move large tire sizes up to 37 Inches, locking front differentials, and larger aftermarket axles without cylinder assist installation.
• 45MM Sector Shaft Diameter eliminates shear potential, one of the main failures of the OEM steering gearbox in severe conditions.
• Mounting Pad areas re-engineered to improve structural rigidity and eliminates the need for bracing on applications that qualify as daily driver and light duty use vehicles.
• 16:1 Turning Ratio delivers improved on-the-road driving manners and reduces oversteer.
• PSC Exclusive Pitman Arm Included

Tech:

The Big Bore XD2 Power Steering Gearboxes require a high flow rate, 1650-1800 PSI Power Steering Pump for the best service life.

• PSC PN PK1853 for 2007-11 Jeep JK 3.8L EGH
• PSC PN PK1858 for 2012-2018 Jeep JK 3.6L Pentastar

High Mileage or Aftermarket Remanufactured OEM power steering pumps DO NOT meet the required flow rate specifications which may result in premature failure of the steering gearbox.

PSC recommends the use of a fluid cooler to prevent catastrophic damage to the power steering pump.

The dimensionally larger size of the Big Bore XD2 series may interfere with some aftermarket track bars.

HEMI Conversions may present tight clearance tolerances if the air conditioning or OEM power steering pump is located on the bottom driver side of the engine.

LS3 Conversions may require modification/clearancing of the alternator bracket.  

The PSC SG688 Big Bore XD2 Steering Gearbox is a game-changer for your 2007-2018 Jeep JK. Designed to enhance the performance of your off-roading experience, this steering gearbox optimally handles increased torque loads, making it essential for those who have upgraded to larger tire sizes up to 37 inches, front locking differentials, or heavy-duty axles from reputable brands like Currie, Dynatrac, or Teraflex.

With its robust features, the Big Bore XD2 is engineered to boost your Jeep's steering efficiency without the need for complex cylinder assist installations. Whether you have a 2-door or 4-door model, this gearbox ensures that your vehicle maintains its stability and control even under demanding conditions.

• 85MM piston providing a 35% increase in torque output for smooth handling.
• 45MM sector shaft diameter that significantly reduces shear potential, ensuring durability.
• Re-engineered mounting pads designed for enhanced structural rigidity, negating the need for additional bracing.
• 16:1 turning ratio that enhances on-road driving dynamics and minimizes oversteer.
• Includes PSC exclusive Pitman Arm for an all-in-one upgrade.

For optimal performance, pairing the Big Bore XD2 with a high flow rate power steering pump (1650-1800 PSI) is recommended. Compatibility with vehicle modifications is crucial; therefore, enthusiasts with HEMI or LS3 conversions should be aware of potential clearance issues. Upgrade your Jeep's steering today and experience the heightened control and responsiveness on any terrain.

The PSC SG688 Big Bore XD2 Steering Gearbox elevates your Jeep JK experience like never before. Specifically designed for 2007-2018 models, this gearbox guarantees enhanced performance under demanding conditions, making it a must-have for off-road enthusiasts who run larger tire sizes, front locking differentials, or heavy-duty aftermarket axles.

This advanced steering gearbox not only increases your vehicle's torque output but also ensures impeccable control and steering responsiveness, essential for power-packed off-roading adventures. From day trips to rugged trails, the Big Bore XD2 is built to deliver reliability and performance.

• 85MM piston yielding a 35% increase in torque output, efficient enough for large tires up to 37 inches.
• 45MM sector shaft diameter designed to eliminate shear potential and enhance durability.
• Re-engineered mounting pads for improved structural rigidity, removing the necessity for bracing.
• 16:1 turning ratio for smoother on-road driving and reduced oversteer.
• Includes PSC exclusive Pitman Arm for a comprehensive upgrade solution.

For peak performance, utilize a high flow rate power steering pump (1650-1800 PSI) to pair with the Big Bore XD2. Please note that compatibility with HEMI or LS3 conversions may involve clearance modifications. Upgrade your Jeep's steering system now and enjoy unparalleled control and precision on any terrain.