Sixties truck did not have a combination tail/brake/back-up light.
They were round stop and tail approx. 4 1/2 " dia. flat faced.
The back-up was round approx. 2 1/2 " dia.
Sorry no pic's at this time.
Nice GMC btw!!
TGP
Last edited by TGP; 05/16/2009 3:03 PM.