QA1 Low Friction Upper Ball Joint - 4-Bolt Style - GM Mid-Size 2010012 Under the stainless steel terminals

Under the stainless steel terminals of the MSD cap and rotor is an easy-to-adjust mechanical advance assembly

Optimum Body Diameter (OBD) Hypercoils feature a unique design concept that adjusts the body diameter of the spring relative to the end coils

Available With Rubber Inserts In A Brushed Or Black Finish

1/2 in NPT Female Dual Ports

1975-1986 Chevrolet C10 CID 327

QA1 Low Friction Upper Ball Joint - 4-Bolt Style - GM Mid-Size 2010012 Under the stainless steel terminalsQA1 has now utilized this technology in ball joints designed and engineered exclusively for high perfomance racing applications. This completely revolutionary ball join design will rock the racing world! For the ultimate in low friction operation (0 ft. lbs breakaway torque!) and the most wear resistant design, look nor ruther than QA1. QA1's patented ball joints feature the following: Ultimate Low Friction Operation o Infinite preload adjustment