That is correct piece all right.
I bought what I thought was a replacement from Jim Carter parts, but I only got one rod (51 inches long) instead of the two rods joined at that clevis hinge. I don't have the rod that has the T-shaped end (or maybe it's a pin through a hole, my old part is too badly rusted to tell).
Did I get the wrong part?
http://www.oldchevytrucks.biz/47_55/full.asp?page=86 (Part# MEB299)