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Synergy Manufacturing Jeep Dana 30/44 Heavy Duty Ball Joint Single Side - 4120-01

Synergy Manufacturing | Part Number: SYN4120-01


  • Upper, Lower Or Kit: Ball Joint Kit
  • Lubeable: Is Lubeable
  • Fitment: Universal Fit
  • In_Stock: In Stock
  • In_Stock: In Stock


  • Factory Replacement for Most Dana 44 and Dana 30 Applications
  • Fully Greasable
  • Sintered Metal On Bushing Design
  • Silicone Boot
  • 1 Upper Ball Joint
  • 1 Lower Ball Joint
  • Made in the U.S.A


These Heavy Duty Ball Joints will outperform your factory ball joints when it comes to strength and reliability. These factory replacement ball joints are precision made and are greaseable unlike most aftermarket and factory ball joints.


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For over a decade, aftermarket industry innovator Synergy Manufacturing has been producing high-end performance components for 4x4s. Known for manufacturing quality suspension systems and accessories, Synergy also has an extensive line of axle upgrades, steering components and skid plates and their synergistic approach ensures that the sum of components outperforms their individual parts. The company thoroughly tests their designs on the Hammers and Rubicon trails where coil springs, shock mounts and control arms for Jeeps can show their true mettle. Replacing weary hardware with Synergy components is easy on the wallet, easy to install and will correct your camber and optimize off-road performance. Shop Synergy Manufacturing Now