08-29-2014, 06:34 PM
That is a dial indicator for checking runout on the rim.
Here is another one similar to the one I built. Not that hard.
<a href="http://s228.photobucket.com/user/cradom/media/PC230063_zpse4cb54f5.jpg.html" target="_blank"><img src="http://i228.photobucket.com/albums/ee166/cradom/PC230063_zpse4cb54f5.jpg" border="0" alt=" photo PC230063_zpse4cb54f5.jpg"/></a>
Here is another one similar to the one I built. Not that hard.
<a href="http://s228.photobucket.com/user/cradom/media/PC230063_zpse4cb54f5.jpg.html" target="_blank"><img src="http://i228.photobucket.com/albums/ee166/cradom/PC230063_zpse4cb54f5.jpg" border="0" alt=" photo PC230063_zpse4cb54f5.jpg"/></a>
Craig Domingue - East Texas Hick