Howdy Pop's Bronco; Whenever I hear the term Early Bronco I think of the original Bobtail, but I thought they ended production in 1975, is your '77 a Full Size Bronco or a Bobtail?
I am a member of the Northern Alberta 4wd Association, a 4wd club based in Edmonton, I don't know for sure what everyone owns as it's a large & diverse club. Check them out online at the club homepage http://www.na4wda.org/
--Ken