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  See more parts for Jeep Cherokee
Select the year of your Jeep Cherokee:
Synergy MFG Jeep HD Knurled Front Ball Joint Set Dana 30/44 2 Uppers 2 Lowers Jeep TJ/LJ/XJ/YJ/ZJ - 4120

Replace your Jeep's factory ball joints with Synergy MFG's Dana 30/44 Heavy Duty Ball Joint Set. These ball joints employ a metal on metal design to improve durability and performance. A must for vehicles with lifts and larger tires. Get rid of that steering wander and play caused by loose or worn out ball joints.

Fits:

  • 97-06 Wrangler TJ and 04-06 Wrangler Unlimited TJL
  • 90-95 Wrangler YJ
  • 90-01 Cherokee XJ
  • 90-92 Comanche MJ
  • 93-98 Grand Cherokee ZJ

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.
Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle Make/Model
Jeep Cherokee 1987-1988 Chief
Jeep Cherokee 1987-1992, 1998-2001 Limited
Jeep Cherokee 1987-1994 Base
Jeep Cherokee 1987-1990 Pioneer
Jeep Cherokee 1987-1992 Laredo
Jeep Cherokee 1989-2001 Sport
Jeep Cherokee 1991-1992 Briarwood
Jeep Cherokee 1993-1997 Country
Jeep Cherokee 1994-2001 SE
Jeep Cherokee 1996, 1998-2001 Classic
Jeep Comanche 1990-1992 Pioneer
Jeep Comanche 1990-1992 Base
Jeep Comanche 1990-1992 Eliminator
Jeep Grand Cherokee 1993 Base
Jeep Grand Cherokee 1993-1998 Limited
Jeep Grand Cherokee 1993-1998 Laredo
Jeep Grand Cherokee 1993-1995 SE
Jeep Grand Cherokee 1995, 1997 Orvis
Jeep Grand Cherokee 1997-1998 TSi
Jeep Grand Cherokee 1998 5.9 Limited
Jeep Wrangler 1987-1988, 1997-2006 Sport
Jeep Wrangler 1987-1995, 1997 Base
Jeep Wrangler 1987-1990 Laredo
Jeep Wrangler 1988-1992 Islander
Jeep Wrangler 1988, 1991-1994 S
Jeep Wrangler 1988-1995, 1997-2004 Sahara
Jeep Wrangler 1991-1994 Renegade
Jeep Wrangler 1994-1995, 1997-2006 SE
Jeep Wrangler 1995 Rio Grande
Jeep Wrangler 2001 60 Aniversario
Jeep Wrangler 2002-2006 X
Jeep Wrangler 2003-2006 Rubicon
Jeep Wrangler 2003 X AT
Jeep Wrangler 2004-2006 Unlimited
Jeep Wrangler 2005-2006 Unlimited Rubicon
Jeep Wrangler 2006 65th Anniversary Edition
Jeep Wrangler 2006 X 65 Aniversario

Synergy MFG Banner

Who is Synergy?

Synergy Manufacturing is an aftermarket company that specializes in creating high-performance parts for various offroad vehicles. The company started back in 2005 and has been dubbed as the industry’s innovator of high-performance automotive components. They have continuously provided their customers with quality products. Hence, they have become a household name when it comes to offroading parts.

Designed by Experts

Synergy Manufacturing offers suspension parts and steering components designed to withstand the harsh condition of offroading. They have engineers with over decades of experience in suspension design and they use the latest CAD engineering software that allows them to create products. This makes their offerings made to fit perfectly on your vehicle.

Tested to Perform 

Their products are all made in the USA to ensure that they can consistently control the quality of their products. Their parts are not only tested inside the lab but are also subjected to a real-world environment. Their components are subjected to hardcore offroading activities in different offroading locations worldwide such as the Hammer Trails in Johnson Valley, The Rocks of Moabs, and different deserts such as the ones in California, Mexico, and Australia.

Purchase Synergy Manufacturing products at Vivid Racing

If offroading is your thing and you want parts that would be able to withstand its harsh environment, then Synergy Manufacturing is the brand for you. They are known for developing fully adjustable suspension systems and are designed to maximize both the vehicle’s on and offroad capabilities. Visit Vivid Racing and check out all their list of products that would fit your specific needs.

Synergy's Warranty Information
  • Warranty is non-transferable
  • All products must be on the original vehicle they were installed on by the original purchaser
  • Proof of purchase is required for all warranty issues
  • Synergy is not responsible for shipping or any additional labor charges incurred with the warranty of any product
  • 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
  • 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
To submit a warranty request, please email [email protected]. Please include your contact information, proof of purchase, and pictures or video demonstrating what you are attempting to warranty.

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