1962 dodge lancer upper control arm question.

Well, 73-76 Upper control arms are what's known as "big ball joint" upper control arms.
Need more information from you if the spindles, and brakes have been changed over in the earlier lifetime of that car.
73-76 upper control arms fiscally fit in the car but the stud diameter taper, of the ball joint, will not go into a 62-72 disc, or drum brake spindle.