These Aluminum Toe Plates from Longacre Racing allow even the most casual mechanic to measure Toe on the front of your vehicle. Toe-In is a very critical suspension setting that if out of whack can lead to very interesting handling.
Here's a quick run-down on how to use them:
This is a fast way to check / set front end toe. It is affected by wheel or tire runout. Be certain wheels run true and tires have no bulges.
Turn wheels to straight ahead: Should be done on level ground. Set caster & camber first.
Lean plates up against wheels: Folded lip goes to the outside. Be sure the entire plate is up against the wheel.
Measure front width, then rear: Use the slots for the tape measure. Subtract one from the other for toe. Larger front width means toe-out.
The plates even come with a set of tape measures so you don't need anything else to measure your Toe! Be sure to check out Longacre's website.