Header Questions for a 73Duster

Yes in 73 Mopar went to the spool type mount. With the wider mount they may have moved the steering box some (not sure on this) Wish I had 70-72 K member here to measure. All of my parts cars are 73 & 74. May have to put a wanted ad on Craigslist here in Reno for a set of Dougs and see whats happens.