• Threaded ball stud retaining ring designed for precise preload adjustment during assembly and future adjustments • 30mm (1.18”) adjustable ball stud for accurate initial and future preload adjustments using simple hand tools — innovative feature ensures a long-life w/ flawless and predictable operation • 2 grease zerk fittings are accessible from either side w/ axle shafts installed, including larger RCV shafts • Dual helical grease grooves machined in the ball stud allow spent grease to exit through the low-profile seal • Heat-treated 4140 chromoly ball studs • Heat-treated 1045 carbon steel housing and threaded retaining ring • Magnesium Phosphate coating provides corrosion resistance and decreases friction • Hard alloy tool steel slotted wear plate for ball stud to socket wear protection • Magnesium phosphate coating provides corrosion resistance and decreases friction • Includes factory style slotted nuts and cotter pins • Low profile single lip dust seal prevents contaminants compared to easily torn conventional dust boots • Heavy-duty snap ring on upper ball joint prevents ball joint separation from the axle during extreme off-roading • Ball joint preload adjustability provides the end user w/ near effortless wear adjustment • Preload adjustment requires simple tools and can be performed with the vehicle on the ground • 1 large set screw on each ball joint • Large 8-sided adjuster handles more torque