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About Us

About Addco

Welcome to Addco


Bars Manufactured






Bent Our First Swaybar
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About Us

ADDCO Manufacturing Company, Inc. produces the world’s broadest line of automotive anti-sway bars and associated components. In addition to being the recognized leader in aftermarket suspension parts, we are a proven, high quality provider to the OEM market, offering the responsive and cost-effective service that only a lean, flexible, state-of-the-art manufacturer can provide.

With more than 50 years of experience in the suspension industry, ADDCO has achieved ISO 9001/QS-9000 certification, and has earned the unqualified confidence of both OEM and aftermarket manufacturers.


ADDCO Offers an Exceptionally Broad Product Line Including

  • After market high-performance anti-sway bar kits, encompassing more than 1,200 vehicle specific applications
  • Series III
  • OEM production parts, service parts, and performance anti-sway bars and associated parts


ADDCO’s Design and Manufacturing Teams Have Consistently Anticipated Industry Needs in Advance of Requirements, Enabling us to Lead the Way in Producing Innovative, Advanced, High-Quality Suspension Components

  • First company to incorporate polymers into stabilizer bar bushings
  • First and only manufacturer to develop “cold forming” of pre-hardened bar stock to prevent heat treat deformation and to retain material specifications in extreme use
  • First and only manufacturer with the capability to produce both solid and tubular bars, top diameter of 2 1/8″ and 3″ respectively
  • First to develop and patent an “in-cab” disconnecting anti-sway bar system

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