This is a brand new Synergy Manufacturing Jeep Wrangler JK and Jeep Grand Cherokee WJ D30/D44 Heavy Duty Front Ball Joint Set. We are an Authorized Dealer of Synergy Manufacturing and carry the full line of products.

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Fits the following applications:

'07-'18 Jeep Wrangler JK 2 Door
'07-'18 Jeep Wrangler JK Unlimited 4 Door
'99-'04 Jeep Grand Cherokee WJ

Part #: 8009-1204

Synergy Manufacturing Jeep Wrangler JK and Grand Cherokee WJ D30/D44 Heavy Duty Front Ball Joint Set

Description:
• New and Improved Ball Joints - Part #'s 8009-1204 and 4120-04
• Compatible with all aftermarket axle shafts (including RCV) with no modifications needed
• Fully Greasable 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-butile rubber (NBR)
• 12 Month Unlimited-Warranty (see warranty information)
• Synergy High Performance Grease (4119) recommended

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 required when replacing knurled ball joints that have enlarged the axle end forging bores
• Non-Knurled ball joints 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 our warranty. It is up to the installer to verify the proper ball joint style is being used.
• 8009-1201 ball joints have been superseded by 8009-1204.
• 4120-01 ball joints have been superseded by 4120-04.

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