Front Upper Ball Joint



CAD designed and CNC manufactured race style front upper ball joint. 20% less drag then OEM, fully rebuild-able and lash adjustable, built-in grease fittings for ease of maintenance with hardened stud. Black oxide coated for all weather service. Great for project cars using miata upper control arms. Includes new boot.

If you are building custom arms we also stock press in rings for these ball joints.

Price is per joint(1) two units are required to complete car.

Note: Our UBJ will press into and work with factory arms. The stamped material of the factory arms is thin around the UBJ area. We Recommend two small tack welds opposite of each for additional support.


Additional information

Weight4 lbs
Dimensions7 × 5 × 1 in


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