Synergy D30/D44 Heavy Duty Front Ball Joint Sets

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Your Price: $200.00
Part Number: SYN8009-12
  • Designed to replace the factory ball joints that are prone to premature wear on lifted vehicles with large off-road tires
  • Fully greasable metal on metal design
  • Machined bearing housing made from sintered graphite, bronze, and 1045 steel for a strong, smooth, bearing surface
  • Ball joint stud made from 4140 steel with an induction heat treated bearing surface for smooth operation and maximum life
  • Uses a larger stud than stock
  • Ball joint boot is made from tear/wear resistant silicone polyurethane
  • Completely eliminates the stock style nylon liner for improved performance and durability
  • Outperforms the factory ball joint assembly and includes all necessary hardware for installation
  • Single Set includes: (1) upper, (1) lower
  • Complete Set includes: 2 Single Sets
  • 12 Month Unlimited-Warranty (see warranty information)
  • Synergy High Performance Grease (4119) is the recommended grease for this product

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.
  • 8009-1201 ball joints have been superseded by 8009-1204.
  • 4120-01 ball joints have been superseded by 4120-04.

*If you have older Synergy MFG 8009-1201 or 4120-01 ball joints that did not live up to your expectations, Synergy MFG has extended the warranty period for ball joints manufactured in 2016 and 2017 that experienced premature wear. Contact [email protected] for more info.



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