Jeep Wrangler JL / Gladiator JT HD Ball Joint Kit - Non-Knurled, 2 Upper & 2 Lower

• 2 upper ball joints
• 2 lower ball joints
• Factory-style slotted nuts and cotter pins

• Heat-treated 4140 chromoly ball studs.
• Heat-treated 1045 carbon steel housings and threaded retaining rings.
• Magnesium phosphate coating resists corrosion and reduces friction.
• Hard alloy tool steel wear plate with dual helical grease channels, so grease flows through the whole joint and spent grease exits through the seal.
• 30 mm adjustable ball stud, so preload can be set at installation and re-adjusted for wear later.
• Preload adjustment needs only simple tools and can be done with the vehicle on the ground.
• Locking mechanism with a single screw.
• Heavy-duty snap ring on the upper joint prevents it separating from the axle in hard off-road use.
• Low-profile single-lip dust seals, with no conventional boot to tear.
• Two grease fittings give access from either side, and can be reached with the axle shafts installed.

This is the non-knurled kit. Non-knurled joints will not score the inner knuckle or open up the bore, so they are the right choice for knuckles in good condition. Knurled joints are for knuckles with a loose press fit after repeated ball joint replacement, or where knurled joints have been fitted before.