1987-2018 Jeep HD Knurled Front Ball Joint Set (8009-12)

Steering wander & play is caused by worn-out ball joints; so get rid of it & upgrade your suspension/ steering with these HD Knurled ball joints from Synergy. These ball joints have a metal-on-metal design to improve durability & performance, as must-have if you've got a lift or larger tires on your Wrangler.

Part Number: 8009-12

• Compatible with all aftermarket axle shafts (including RCV) with no modifications needed
• Fully greaseable metal-on-metal design for prolonged life
• Ball Joint bearing surface area is considerably larger than stock due to elimination of the inner nylon liner for a longer-lasting joint
• Ball joint housing is manufactured from sintered graphite, bronze, and 1045 steel for a strong, smooth, bearing surface
• Ball joint stud is manufactured from induction heat treated 4140 steel for maximum strength and smooth operation
• Ball joint dust boot is made from wear/tear-resistant black nitro-butyl rubber

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• Metal on metal ball joints requires 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 knurled ball joints that have enlarged the axle end forging bores
• Non-Knurled ball joints are recommended for replacing non-knurled ball joints
• Due to these ball joints being tight tolerance, metal on metal ball joints, proper fitment is critical. Using the wrong style of ball joints can cause significant steering issues. We always recommend installing non-knurled ball joints until non-knurled ball joints are no longer a press fit into the axle end forging bores. If your axle end forging bores have been enlarged to the point that non-knurled ball joints are no longer a press fit, knurled ball joints are required.
• Use of the improper ball joint style for the axle housing voids the warranty. It is up to the installer to verify the proper ball joint style is being used.

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