Fastrax review and alignment questions for the pros.

67Dart273 said
You should be measuring "about inline" with the spindle. I simply use a scribe which you can build. Jack up one tire at a time, barely off the ground, under the LCA. "Anchor" your scribe and rotate the tire to provide at least two marks 1/2 turn apart (180*) on each tire. Then tape between, the difference, etc

Because I'm usually working alone, I actually bought a toe gauge, although you can build one. This one turned out to be for large trucks, and I had to saw it down it was too tall

This is the scribe and toe gauge I bought off egag

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I scored some beat up Ammco turning plates and caster/ camber gauge here locally

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You don't really need this fancy stuff but you DO need an angle gauge to measure camber. Caster is figured mathematically by turning the tires in and out I believe its 22.5 degrees, take the difference in camber readings, and multiply by 1.5 to get caster. Search it you can find destructions on the net

I hate you.
You always find cool tools second hand.
I'm using greased poly sheets for turn plates.
"I got nothin'".
That's why I bought the Fastrax with spirit levels.
And since I did that I sprung for the toe adaptors.

Did you notice the original conundrum?
Chrysler gives the toe specs at "1/8" in across all car lines.
But since tires vary in size where does one measure since going father out will compound the distance of toe.
It looks like alignment shops convert toe into degrees.
That would be a constant and it wouldn't make any difference what tire size was on a car.