Roger, I was just putting up a thread I recalled, that I thought might help you (sorry about that bad link, I just used the number you posted and it came up with a cheaper price).
I don't not know if the parts are one in the same.
The person you want to PM is
Slorio in this thread(Steve). He can answer your specific questions as he's the one that did it.
Good luck, Henry
http://67-72chevytrucks.com/vboard/s...d.php?t=412665