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PSC Motor Sports Big Bore HD Steering Box - PSC-SG685


  • PSC Steering | Part Number: PSMPSC-SG685
  • Fitment:Direct Fit


With the Jeep JK steering gears being pushed to the point of failure due to the increased torque loads of larger tire sizes, larger axles and locking differentials, the time has come for a larger steering gear. Well it is here! PSC Motorsports went back to the drawing board and re-engineered a new direct bolt-in high torque/heavy-duty replacement steering gear for all Jeep JK applications. The new JK XD steering gear replaces the 70mm stock piston with a larger 80mm piston, giving it more turning torque to turn up to 37 inch tall tires without the need of cylinder assist. More material was added to the case in all mounting for sturdier base. Sector shaft diameter is increased from 35mm to 42mm for a 35 percent increase in strength. The JK-HD kit comes with a new factory drop pitman arm, nut and washer to match the newer larger sector shaft. Anyone with a Jeep JK running bigger than factory tires will want this bolt on upgrade on their must have list.


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Headquartered in Fort, Texas, Performance Steering Components (PSC) grew out of founder Tom Allen's business to re-manufacture rack & pinion steering gears originally launched over 30 years ago. He graduated to custom steering gear and system builds for off-road and racing applications and the business grew. Now, PSC Motorsports boasts over 200 dealers and its sales staff maintains an avid interest in off-road related innovations and events. 4WD carries a wide spectrum of PSC products for Jeeps including power steering conversion kits, Jeep steering boxes and Jeep hydraulic steering assists to keep your trips on and off the trail safe and smooth. Shop PSC Steering Now