Old school alignment guys; gauge mount idea. What am I missing?

72bluNblu said

I just use a Fastraxx gauge, it clamps onto the outer lip of the rim. You have to make sure it's tight to the wheel, but it works well once you practice a bit with how much tension to put on the gauge to hold it to the wheel. They make a version for 13-17" wheel and 17-22" wheels.

SPC Performance 91000 SPC Performance FasTrax Camber Caster Gauges | Summit Racing

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I’ve seen you talk about those before. My guess is that when I step up to 18” wheels, I will have to get something like that. But right now, I was hoping to avoid another big outlay of cash.

Edit - worse yet, I would have to buy both sets at some point. My ‘74 has 17” wheels while the ‘73 will get the 18” Forgestars.