⚠️ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
TeraFlex JK/JKU Heavy-Duty Ball Joints are engineered to handle the increased load caused by oversized tires and offset wheels. With knurl. Fits:
JK Wrangler (2-door) w/Dana 30 or Dana 44 axle
JKU Wrangler Unlimited (4-door) w/Dana 30 or Dana 44 axle
Includes:
Upper ball joints w/knurl - pair
Lower ball joints w/knurl - pair
Sold As A Set (both sides)
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 chromoly ball/stud and 1045 carbon steel housing
Factory style serrated flange nut and grease fitting
W/knurls
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 ensuring longevity and predictable operation
Magnesium Phosphate coating to inhibit corrosion and friction throughout
Heat treated 4140 chromoly ball/stud
Huge 30mm (1.18 inch) 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 and 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/ (2) zerk fittings (Frog Eye) allow greasing access from either side w/out axle shaft removal
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
W/knurls
Note:
We recommend ball joints w/out knurls (P/N 3442022) or (P/N 3440020) as they will not score the inner knuckle and open up the bore.
Also offered w/ knurls (P/N 3442022) or (P/N 3440020) for ball joints w/ a loose press fit in the inner knuckle due to repeated ball joint replacement or if knurled ball joints have been installed in the past.
