Knock Out Control Arm Punches: Make way for proper alignment work on many GM vehicles by using this tool to clear out the control arm punches quickly and easily Applications: For use with Chevrolet and GMC 1/2 ton, 3/4 ton, and 1 ton 2WD and 4WD trucks (1989-2001) as well as all-wheel drive Chevrolet Astro and GMC Safari vans (1990-2002) Compact: Control arm punches are in a tight spot, making it difficult to use air chisels or a hammer and punch to complete the job; The compact design of this tool makes it easy Save Time And Money: This control arm punch out tool allows you to do in minutes what, without it, could take hours to complete; Save your time and save on labor costs Improved Design: The new improved design has a self-centering knock-out for full punch removal and less tear