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Synergy Manufacturing HD Adjustable Ball Joint Kit for 99-18 Jeep Wrangler JK & Grand Cherokee WJ

Outfit your Jeep Wrangler JK or Grand Cherokee WJ with the last set of ball joints you will ever need! The Synergy Manufacturing HD Adjustable Ball Joint Kit are a highly anticipated ball joint solution. Synergy spent five years and over 100k miles testing and fine tuning these ball joints. The finished product lives up to their “HD” name, and is specifically designed to tighten up sloppy steering. Unlike other Jeep ball joints on the market, the lower ball joints in this kit are adjustable for precise preload. They also feature CNC machined 4140 steel bearing surfaces, and can be completely rebuilt without being removed from the vehicle. Because of their low-profile design, Synergy Manufacturing HD Adjustable Ball Joints are compatible with RCV axles.

Heavy-Duty Construction: Synergy’s low-profile ball joint dust boots are made from thick nitrobutile rubber (NBR) for long lasting protection. The bearing surface on the lower ball joints are CNC machined from 4140 steel.

Knurled vs. Non-Knurled: The knurled ball joints are meant for use in worn out steering knuckles, or when replacing other knurled ball joints. When replacing factory style ball joints, the non-knurled version should be selected.

Complete Kit: The Synergy Manufacturing HD Adjustable Ball Joint Kit includes upper and lower ball joints for both the left and right side. In addition to the ball joints, this kit has grease zerks, an adjustment wrench, and installation hardware. No additional parts are required.

Installation Notes
Installation Difficulty:
Level 3Advanced
Installation Time: 3-5 hours
Parts Included
  • Upper Ball Joint Pair
  • Lower Ball Joint Pair
  • Installation Hardware
  • Grease Zerk Fittings
  • Ball Joint Adjustment Wrench
Limited Lifetime Warranty
  • Features: Left, Lower, Right, Upper
*Please make a selection above to view weight, dimensions, specs of a specific product
  • Jeep Grand Cherokee (WJ)

  • 2004 Jeep Grand Cherokee (WJ)
  • 2003 Jeep Grand Cherokee (WJ)
  • 2002 Jeep Grand Cherokee (WJ)
  • 2001 Jeep Grand Cherokee (WJ)
  • 2000 Jeep Grand Cherokee (WJ)
  • 1999 Jeep Grand Cherokee (WJ)
  • Jeep Wrangler 2-Door (JK)

  • 2018 Jeep Wrangler 2-Door (JK)
  • 2017 Jeep Wrangler 2-Door (JK)
  • 2016 Jeep Wrangler 2-Door (JK)
  • 2015 Jeep Wrangler 2-Door (JK)
  • 2014 Jeep Wrangler 2-Door (JK)
  • 2013 Jeep Wrangler 2-Door (JK)
  • 2012 Jeep Wrangler 2-Door (JK)
  • 2011 Jeep Wrangler 2-Door (JK)
  • 2010 Jeep Wrangler 2-Door (JK)
  • 2009 Jeep Wrangler 2-Door (JK)
  • 2008 Jeep Wrangler 2-Door (JK)
  • 2007 Jeep Wrangler 2-Door (JK)
  • Jeep Wrangler Unlimited 4-Door (JK)

  • 2018 Jeep Wrangler Unlimited 4-Door (JK)
  • 2017 Jeep Wrangler Unlimited 4-Door (JK)
  • 2016 Jeep Wrangler Unlimited 4-Door (JK)
  • 2015 Jeep Wrangler Unlimited 4-Door (JK)
  • 2014 Jeep Wrangler Unlimited 4-Door (JK)
  • 2013 Jeep Wrangler Unlimited 4-Door (JK)
  • 2012 Jeep Wrangler Unlimited 4-Door (JK)
  • 2011 Jeep Wrangler Unlimited 4-Door (JK)
  • 2010 Jeep Wrangler Unlimited 4-Door (JK)
  • 2009 Jeep Wrangler Unlimited 4-Door (JK)
  • 2008 Jeep Wrangler Unlimited 4-Door (JK)
  • 2007 Jeep Wrangler Unlimited 4-Door (JK)

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