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  • Sealed joint retains grease and excludes contaminants
  • Highly polished electroless-nickel finish on ball maximizes durability
  • Up to 45° angularity for high mis-alignment requirements
  • Common sizes that builders, fabricators and racers need


  • Reduced compliance and deflections vs rubber and poly joints
  • Improved durability vs spherical bearings and poly style bushings
  • Increased angularity compares to rubber and poly bushings
  • Precision engineered to be a direct fit for many popular street/race or HD and off-road applications

For more on our xAxis Sealed Flex Joints, including CAD models and Technical Data Sheets click here.

  builders catalog

Check out our new Builder Series/Off-Road flyer. Everything we have for this growing market is in this updated 12-page brochure. Our entire xAxis™ and tubular chassis line, everything JounceShock™ as well as selected alignment parts for off-road and lifted trucks.
ball joint series
SPC Builder Ball Joints provide an excellent alternative to traditional spherical bearings or OE ball joints when constructing custom control arms. Designed with the professional/home fabricator in mind, these rebuildable and greaseable ball joints offer high load capacity combined with massive articulation. Derived from SPC’s latest generation of large truck ball joints, the Builder Ball Joint Series features a wear-compensating design with redundant sealing for years of service between rebuilds. Hardened, alloy steel ball studs are offered for a variety of applications, making it easy to incorporate these joints into your project.

For more on our Builder Ball Joints, including CAD models and Technical Data Sheets click here.


Specialty Products manufacturers some of the highest quality tubular chassis components in the industry. These high end components are perfect for race or off-road builds. Many of our components are made of 4140 N Chromoly Steel for superior strength. Others, such as our High Mis-Alignment Inserts are crafted from Hardened Stainless steel.


Often called “dimple dies,” Flared Hole Dies are used in sheet-metal fabrications to provide rigidity and strength to flat panels. Due to the ­resulting high strength-to-weight ratio flared holes are found in many aircraft and race vehicle designs.

 Looking for a size not listed? Contact Us with your requirement

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Please Note: While SPC does not offer direct on-site service of vehicles, our experienced techs are here to help answer any alignment questions you may have through our email form and FAQ section.


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