DANGIT! I looked all over for something like this a few months ago. Could have saved me several days of utter frustration. Now I have to go out and see if I actually got the thing on there correctly. :-\
Well, that was easy. The trick for me was to unhook the linkage from the carb so I could lift the pedal as far up as possible, then if you feed the spring as per the Bronco video it almost went in by itself. Once you get the spring into place you hook it over the arm and then just push the top end into the pedal. Barely an inconvenience.