Steering end to end movement limited

I don't know. The anti-sway bars are different from 72/ earlier, to 73/ later, and so is the tab mounting on the arm. Many of us have mounted the spindles reversed side for side, so that we can mount the calipers on the rear side of the spindle, to alleviate any POSSIBLE problems with anti sway bars.

What are you using for brakes? The 71 would still originally have had the old dual piston calipers, so if you are running 73/ later single piston calipers they may not fit. Again, the sway bar setup, 73/ later, as well as the brakes, changed that year