327 Crankshaft Damper - Bolt?

[gangforward]

Help! Have a 67 Fleetside with 327 - it threw off the lower pulley, broke the belts, took out the radiator, ruined the harmonic damper on the end of the crankshare.

Have replacement parts, but can't tell if the Damper was a simple press on, or if there is supposed to be a crankshaft damper bolt going into the end of the crankshaft.

Either there is no bolt for this engine, or the bolt was sheared off as well, I can't put a 7/16" fine thread into the end of the crankshaft.

Please... Help! Any suggestions?

I'll post pic's of "The General" soon.... 67, Fleetside, Hugger Orange, 2wd, 327, glide.

Cheers!