Yes, here is a picture of the firewall: http://i1023.photobucket.com/albums/af352/vincentmilone/DSC_0049-2.jpg .

So a 1949 cab would account for the 47-49 tapered grommet.

Is this uncommon/original or not/something to be worried about?

So will the '50 harness be fine?

Do I technically have a 1950 truck, or a hodgepodge?

Last edited by 50chvytrk; 03/31/2012 3:16 AM.