Sounds like the wrong steering gear for an early A. Until ~1973, A-body steering gearboxes had a smaller output shaft to the Pitman arm than the B, C, E bodies. After that, they used the same gearbox. I'm not sure how the later Pitman arm bolted up since they also changed steering components ~1967. On mine, the balljoint studs on the Pitman arm and inner and outer idler arms point up, whereas they pointed down in 1967+ cars. The later cars also have a ~1" longer crosslink since the engine bay is wider. If yours is a V-8, you need the crosslink which drops down more than in slant-six cars (hard to tell in photos, maybe 1/2" more). Some 1966 slant cars apparently got the same V-8 crosslink, perhaps because the factory was using up stock before the change.
