SPC Performance Upper Control Arm - Adjustable - Screw-In Ball Joint - Steel - Black Paint - GM F-Body 1970-81 (Pair) Battery Four steps of rpm limits

Four steps of rpm limits for burnout

resists auto and shop fluids

Use it for accurate timing

0 Diameter

steel and anodized aluminum

SPC Performance Upper Control Arm - Adjustable - Screw-In Ball Joint - Steel - Black Paint - GM F-Body 1970-81 (Pair) Battery Four steps of rpm limitsProduct Description: Control Arm Tubular Upper Adjustable Screw In Ball Joint Steel Black Paint GM F Body 1970 81 Pair Specialty Products pioneered the alignment parts business in 1975 and is the preferred brand by professional installers. As a holder of numerous strategic patents, Specialty Products Company leads the industry in product innovation.