Description
Synergy Jeep JK / JKU / WJ Heavy Duty Front Ball Joint Set replaces your Jeep Wrangler's factory ball joints with heavy duty ball joints. After over 5 years of development and over 500,000 test miles of research and development and serious abuse, these ball joints are the highest quality ball joints on the market.
Our fully greaseable metal on metal design improves durability and performance. The extra large ball joint bearing surface eliminates the inner nylon liner, creating a longer lasting, more reliable joint. If you have a lifted jeep, then you need heavy duty ball joints to put up to the abuse of bigger tires and offroad riding.
Fits:
- 07-18 Jeep Wrangler JK and Rubicon
- 07-18 Jeep Wrangler Unlimited JK and Rubicon
- 99-04 Jeep Grand Cherokee WJ
Features:
- 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.
| Part # | Description | Fitment |
|---|---|---|
| 8009-1204 | (1) Knurled Upper Ball Joint (1) Knurled Lower Ball Joint |
1999 - 2004 Jeep Grand Cherokee WJ 2007-2018 Jeep Wrangler JK / JKU |
| 8009-12 | (2) Knurled Upper Ball Joints (2) Knurled Lower Ball Joints |
1999 - 2004 Jeep Grand Cherokee WJ 2007-2018 Jeep Wrangler JK / JKU |
| 8012-6004 | (1) Non-Knurled Upper Ball Joint (1) Non-Knurled Lower Ball Joint |
1999 - 2004 Jeep Grand Cherokee WJ 2007-2018 Jeep Wrangler JK / JKU |
| 8012-60 | (2) Non-Knurled Upper Ball Joints (2) Non-Knurled Lower Ball Joints |
1999 - 2004 Jeep Grand Cherokee WJ 2007-2018 Jeep Wrangler JK / JKU |
Warranty Information
WARRANTY CLAIMS:
Your product(s) must be purchased either directly, or through one of our authorized dealers. Warranty Coverage applies ONLY to the ORIGINAL PURCHASER. Proof of purchase will be required prior to warranty replacement.
Warranty covers product replacement only. Warranty will never be a parts cost refund. Warranty will never cover any collateral damage costs such as install, alignments, labor, etc. Parts that are subject to wear and tear are not eligible for warranty. These products include but are not limited to: bushings, bump stops, bearings, tie rod ends, and dust boots. Products must be installed correctly, unaltered, and free from abuse. Failure to install parts to Synergy Manufacturing's specifications listed in our instructions manuals will automatically NOT be eligible for warranty. Synergy heavy duty front ball joint sets carry a 12 Month Unlimited-Warranty. Synergy hard parts have a Limited-Lifetime Warranty and are guaranteed to be free from defects in materials and workmanship. Product finishes are not guaranteed.
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