| same simple angle finder. They are accurate to .5 degree. You can get a digital one for $90 but it is not necessary in my opinion. The tool is comparing angle against center of gravity on the needle counter weight. That is how I adjusted and checked my front and rear camber. If you don't have flat surface on the hub of the wheel, you can use a straight edge bar against the rim. The angle finder has magnet to stick to steel surface like the metal bar . [ http://www.vernco.com/id502.htm ]
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