Looks like the locks they used to sell at the local parts stores back in the day... I may even have a set sitting in the garage yet. I usually do the air chisel route myself.

68 Road Runner, 69 Belvedere, 71 Challenger Vert
340 barracuda, 01 Ram CTD, 95 Ram, 04 Ram, 85 Daytona turbo Z
66 GTO, 06 Magnum RT AWD. 07 Ram CTD, 07 Ram