I have a 52 3100. But was gifted a 54 chassis. When I had trouble with the King Pins and spindles, I looked at the Tie Rod. It is a different length. So measure from Tie Rod ends Center to center to be close. After install. Measure for 3/16ths of Toe in. Adjust if needed. The means you will have to shove a bit back and forth a few feet to "set" the suspension after you install.
3/16" is ok or bias tires, but a bit much for radials. We do our own front end work on my fleet of trucks and I have turn tables. But many years ago I put a little grease on some tin and it worked quite well. After you get through setting the toe in, jack the front end up to where both tires are off the ground and let it back down. Measure your toe in again to see that you are still where you want it.
