Well, after some screwing around I've discovered how to crack the combination on my 93 gp/se.First zero the tumblers then,starting from right to left look at the individual tumblers. On the right side of the tumbler you can see some gear teeth pretty close together.Slowly rotate tumbler until you notice a gap in the teeth..stop..that gap is the correct number for that individual tumbler.repeat process for the rest of the tumblers and,open your glovebox to lost treasures! hope this helps someone