Perfect For The Beginning Locksmith! A complete guide for servicing, re-keying and making keys to the most common GM locks. The locks covered include GM door locks, trunk locks, steering column ignition locks, in-dash ignition locks, and the three most common glove compartment locks. The tape includes a special section on removing an in-dash ignition lock without the key. A wallet size progression chart and a Quick Reference Guide filled with helpful hints and tricks are included with each tape. Length: 57 min.