[chevy71super]

I installed one on my 1971 K10. Not sure if there are any frame differences between the two years.

I went to a junk yard and took one from a square body including the frame brackets. (Hammering the rivets off was a pain . . . . ) It turns out swapping the frame brackets to opposite side and a little trimming they fit my 71!

I can take a few pictures if you would like. Doug