Caster Camber Gauge Adapter Type Wheel adapters Notes Adjusts to any size wheel. This is the fastest way to check your front end alignment. Just hold it against the rim for easy, accurate readings. No spindle adapters required here. Made from CNC machined billet aluminum. Works on virtually any car with wheels from 12" to 17". 3 point design makes setting caster easier. Folds for easy storage. (Adapter only - caster/camber gauge and case not included) These Longacre caster camber gauge adapters will help you to set up the front-end of your race car. They allow you to mount the Longacre caster camber gauge. Make sure that your front-end is set up correctly before you hit the track with one of these Longacre caster camber gauge magnetic adapters.