Big block A body pitman arm

gregpurcell said
They are the same pitman arm from 67-72 on all engines

Pitman arms are not the same for big blocks in 68 and 69. Firmfeel Mopar Suspension and Steering

My 69 383-s had fast ratio steering and that pitman arm is even different from the standard big block pitman arm. It has a different shaft diameter.