2018-2024 Jeep Heavy Duty Ball Joint Kits (4170-XX)

Description

Upgrade your 2018-2024 Jeep JL/JLU Wrangler or JT Gladiator with Heavy Duty Ball Joint Kits featuring a metal-on-metal bearing design for enhanced durability and performance. Designed to replace the factory plastic nylon bearings, these kits reduce steering play and improve control, especially for lifted vehicles with larger tires used off-road. Durable and built to last, they address premature wear issues found in stock ball joints for reliable steering.

Part Number: 4170-XX

Features

• Fully greaseable metal-on-metal design for prolonged life
• High-carbon alloy 1045 steel ball joint housing provides a smooth bearing surface and robust design
• Ball joint bearing race is manufactured from sintered graphite & oil-impregnated bronze for a strong, smooth bearing surface
• Ball joint stud is manufactured from induction heat-treated 4140 Chromoly steel for maximum strength and reliability
• Ball joint dust boots are made from an industrial-grade, wear-and-tear-resistant black nitro-butyl rubber (NBR)

Includes:

Installation

• Click Here

Notes

• Metal-on-metal ball joints require a small break-in period of typically 100-500 miles to fully "seat" the bearing surfaces. During this time the steering may feel "sticky" or slow to "return to center". Once broken in, the steering will be smooth and tight.
• Knurled ball joints are required when replacing ball joints that have enlarged the axle end forging bores
• It is up to the installer to verify that the proper ball joint style is being used
• Synergy High Performance Grease (4119) recommended

Warranty

• 12-Month Unlimited Warranty