I got to meet Jim personally while working my junior year work study job at the I.M. sports building's weight room. He told me his weight was 220 then, but he was only a soph, and packed on the pounds, mucle and experience over his last two years. Nice a guy as you could imagine; kind of the personable demeanor you'd expect from Denard (without the wide-eyed smile).
A funny little aside: it was January of '73, after our ridiculous loss to Ohio State in Columbus, when Denny Franklin led us to nearly 200 more total yards than they had, but Bo stubbornly called four runs on two separate occasions inside the OSU 5, and run-oriented Woody's teams stuffed them both times. I thought at the time that that was the worst job of coaching I'd ever seen from any coach, any team. Anyhow, regarding that, J.C. told me (and several other guys in the weight room) that "Schembechler apologized to the team for the loss afterwards." (!)
Then again, he should have...as well as to us alums and fans!!!