No, well, not on my rig anyhow...(70 F100)...the whole assy in held to the dash by a spanner-type retainer. 3 notches in the bezel surrounding keyway, use spanner tool to unscrew this, pull ignition out from behind dash, disconnect the harness. Plug removal not necessary to remove lock assy. Sorry, I didn't think this completely thru earlier, will think it out before opening my mouth next time. For plug removal: most convenient if one has a key....otherwise, must pick the lock to rotate it to acc position. For this unit, key doesn't need to be in the keyway for plug removal.

Actually, I had hoped Jim's locksmith would have told him to remove ignition, or perhaps a door lock if the key worked them too--bring it to the shop (maybe even helped with the how-to...we did stuff like that for our customers) and save the service call fee. Of course, maybe that's why it didn't pay so great...?

Darn, just when I thought I was being helpful--I'll try harder in the future.