for mc, see last page
http://www.imperialclub.org/Repair/Lit/Master/260/Page13.htmfilmstrip here has more pictures
http://www.imperialclub.org/Repair/Lit/Films/260/index.htmlsame MTSC booklets and filmstrips for '69 in different format also at
http://www.hamtramck-historical.com/MTSC/1969/ServiceConferenceMenu.shtml--
Without descriptions and/or pictures of what you have found, its hard to do more than point toward good resources for solving brake problems.
If the right front drum is hot, that would suggest dragging.