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Synergy Jeep TJ/TJL/YJ/XJ/ZJ HD Knurled Front Ball Joint Set for Dana 30/44 - 4120-04

$150.00

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Synergy Jeep TJ/TJL/YJ/XJ/ZJ HD Knurled Front Ball Joint Set for Dana 30/44 - 4120-04

$150.00

$150.00

The Synergy Manufacturing HD Knurled Front Ball Joint Set (4120-04) is engineered to restore front-end stability in 1984-2006 Jeep models equipped with Dana 30 or Dana 44 front axles. These heavy-duty joints feature a knurled outer housing specifically designed to provide a secure, tight press-fit in axle C-ends where the original bores have become slightly oversized or wallowed out from repeated replacements or rigorous off-road use.

Each set is built to exceed factory tolerances, offering a more robust alternative to standard replacement joints. This complete kit includes the upper and lower ball joints and necessary hardware to service the front axle, ensuring precise steering geometry and eliminating the movement often found with standard-fit joints in worn housings.

  • Fits 1984-2006 Jeep Cherokee XJ, Wrangler YJ/TJ/TJL, and Grand Cherokee ZJ with Dana 30 or Dana 44 axles.
  • Knurled design ensures maximum retention in oversized or worn axle housing bores.
  • Heavy-duty (HD) construction for increased service life and resistance to lateral loads.
  • Restores steering precision and prevents joint-to-bore movement.
  • Complete set including all required mounting hardware.
  • Manufacturer Part Number: 4120-04
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