JK/JKU Heavy-Duty Ball Joints are engineered to handle the increased load caused by oversized tires and offset wheels.
FITS: JK Wrangler (2-door) w/ Dana 30 or 44 axle, JKU Wrangler Unlimited (4-door) w/ Dana 30 or 44 axle.
INCLUDES: Upper ball joints w/out knurl - pair, Lower ball joints w/out knurl - pair.
UPPER BALL JOINT FEATURES: Extremely hard sintered wear bushings to handle extreme side load demands w/out failure, Magnesium Phosphate coating to inhibit corrosion throughout, Heat treated 4140 chromo ball/stud & 1045 carbon steel housing, Factory-style serrated flange nut & grease fitting.
LOWER BALL JOINT FEATURES: Hard alloy tool steel slotted wear plate for ball/stud to socket wear protection, Wear plate features grease channels for increased flow through entire joint, Magnesium Phosphate coating to inhibit corrosion & friction throughout, Heat treated 4140 chromo ball/stud, Huge 30mm (1.18”) ball, Factory style serrated flanged castle nut, Ball joint pre-load adjustability provides the end user w/ near effortless wear adjustment (kit includes Preload Adjustment Tool), Low-profile single lip dust seal eliminates torn conventional dust boot concerns, Adjustable ball stud retaining ring for accurate initial & future preload adjustments that can be done w/out any axle disassembly, Adjustable preload can be performed w/ simple hand tools, Adjustable end cap w/ two zero fittings allow greasing access from either side w/out axle shaft removal even w/ larger RCV shafts, Dual helical grease grooves machined in the retaining ring allow spent grease to exit through the low-profile seal, Low-profile seal prevents contaminants, while allowing spent grease to evacuate from the ball joint.
