The 2 bolt arms, although easier to remove and install are a worse design than the 4 bolt arms. Ford even went back to the 4 bolt arms with later Cougar production because of this.

The 2 bolt design puts undue stress on the bushings and causes them to fail prematurely. When they do go, the A arms flop around-not a good situation.

If you have a choice go with the 4 bolts. Eventually, I'll have replacement bushings for them.

Redcoat Raceworks. Performance parts and custom fabricating for Contours, Mystiques and Cougars. Specializing in chassis and suspension parts. Custom end links, control arms, strut tower bars, engine torque braces, etc.