Doing an alignment in the driveway on a 72 scamp
You can align it yourself, do some Googling. You need some method of measuring caster/ camber, and you can buy caster camber gauges several places
You need some sort of swivel plates for the front tires, and one website I found suggested some sort of tiles, I don't remember what.
You need an absolutely level pad, such as your garage floor
Toe is the easiest. You can do that by first jacking up the tires and marking them with any method, to produce repeatable results on opposite sides of the tire, IE front and rear. You can spray paint on the tire and scribe, rotate, and scribe, or put patches of tape and scribe that. For a scribe, you need a SOLID stand of some sort to bring the scribe up to the tire in one spot and not move, so that you make a mark in the same spot.
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Then it's a matter of properly aligning it. Jim Lusk posted this some time ago:
This thread:
http://www.forabodiesonly.com/mopar/showthread.php?t=60712
"Have them start with the front cam all the way out and the rear cam all the way in. Move the rear cam out until camber is in spec (1/2 deg. neg is good). This is the most positive caster that is available without new parts (offset bushings, tubular upper control arms, etc.). All of this is AFTER setting ride height. I usually set ride height with about an inch between the LCA bumper and the frame, then even the sides up. "
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For alignment specs use the "skosh chart" here:
NOTICE that if you are running radial tires, that there is much more caster needed, and that camber is recommended as NEGATIVE (tires in at the top) instead of positive as the old specs (tires out at the top) The spec listed for "track / autoX" as being neg 2 to 3 should say neg 2 to neg 3*
http://www.allpar.com/history/mopar/front-end-alignment.html