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I am replacing the king pins in my '49 Woodie. I am not disassembling the A-Arms or replacing the bushings/seals. While cleaning the lower A-Arm, I might have allowed the pivot bar to rotate. I am not sure, but I used a small guage wire through the pivot bar to attach to the A-Arm to maintain the orientation and one came off during the cleaning/painting process. My manual has the attached diagram showing the correct positioning of the pivot to the A-Arm. I have a couple laser tools that I am using try to check that my readings are as desired from the layout. I have a couple problems. First, the actual width of my A-Arm (measurement "A" in the diagram), which the diagram shows should be 11 9/16 inches is actually 11 3/4 inches, so 3/16 off. Second, trying to get measurement B, which looks like the key measure to determine the correct position of the pivot, can be either 2 13/64 or 2 8/64. I can not land exactly on the measurement. I think the goal of this is to get the pivot bar centered as much as possible between the forks of the A-Arm. In other words, to align the center of the pivot bar to exactly the halfway point of measurement A. Is that correct? would that mean that measurement "B" (shown here to be 2 5/32) should simply be made to be as equal as possible on both sides of the A-Arm? I am assuming if this is off, it might affect the Caster? If that is the case, and i can not get these to be exactly where the manual says they should be, I probably want to err of the side of moving the lower A-Arm to the front, supplying a bit more positive caster?

I have a 52 b3b that I am having trouble setting the toe in. The tie rod bar was bent and I was able to straighten it as best I could. Can I set the toe in with the front wheels off the ground or do they have to be on the ground? I have 205/65 16 tires all around and the truck sits a little low so it is difficult to get under it. Can the toe in be set with measurements off the backing plate or drums? Everything is pretty tight as I have rebuilt the front suspension. Kind of looking for tricks of the trade to help with getting it done. Thanks Larry