2018-2024 Wrangler JL/Gladiator JT Heavy Duty Ball Joints 2 Upper/2 Lower, Non-Knurled (4170-60)

Description

Synergy Heavy Duty Ball Joints 2 Upper/2 Lower for the 2018-2024 Wrangler JL/Gladiator JT. The full set replaces both sides of the factory ball joints, which keep a nylon liner that wears out early, with a greaseable metal-on-metal design.

Without the inner nylon liner the bearing surface is much larger, so the joints last longer and tighten up steering wander on lifted Jeeps with bigger tires. The housing is high-carbon 1045 steel, the race is sintered oil-impregnated bronze, and the stud is induction heat-treated 4140 chromoly.

Features

• Greaseable metal-on-metal design with no nylon liner
• High-carbon 1045 steel housing
• Sintered, oil-impregnated bronze bearing race
• Induction heat-treated 4140 chromoly stud
• Works with aftermarket axle shafts, including RCV, with no changes

Notes

• Non-knurled: use the knurled set if the old joints have enlarged the axle forging bores.
• Allow 100-500 miles of break-in; steering may feel slow to return to center until then.