Cool! Bought my son a 66 very similar to yours--66 big window custom cab 305 big block V6, 3 speed, long bed fleetside.

He loves it. 97K original miles, he is 2nd owner, drives it quite a bit. It will haul with that big bed. Some rust on front fender rear quarters and fender braces, but solid everywhere else I've looked.


R-Bo

1959 Apache 1/2 ton Big Window, Short bed Fleetside (under reconstruction)
1966 GMC 305V6 in the family