Brian,
Please post the measurements if you can find them because I am about to undertake the same upgrade. I've got all of the parts gathered up, rebuilt, cleaned and painted from a '79 and I was sitting in the garage the other day puzzling out the exact same thing as George. I can still get to the donor truck to measure if I have to, but what to measure and how? Given the number of people that are doing this upgrade it seems like a very good topic for a tech tip. By the way...I found the PS bracket (one piece in CO and the other piece in NJ).
Thanks. Morris
