Specialty Products Company 45938 Lock Tab Socket for GM<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Special grooved socket fits over the end of the bolt</li><li>Allows turning of the alignment cams to change alignment angles</li><li>Makes aligning 4WD trucks much quicker and easier</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41mTPtxesvL.jpg" noproxy>