Quote:
Originally Posted by Y-Blockhead
The toe plates only touch the wheel so "Any imperfection/bulge in the sidewall of the tire" does not effect the use of the tool.
A bent wheel is going to effect the way the car handles no matter what method you use.
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A lot of Model A wheels have some degree of runout, but are still very useable. Some of the plates in the links above have adjustable contact points to measure at the rim, although the plate pictured in post #38 seems to have no contacts points and is resting against the tire sidewall. The point is that any wheel runout can affect the accuracy of toe plates, even if they only touch the rim. This is not a factor when using a Duby spring gauge.