Not sure what the "book" says about the interchange, however, I have a '74 RR that came from the factory w/fixed rear glass. I exchanged these fixed windows with junkyard crank-up glass, regulators & handles from a '72 Sebring coupe. Fit like they were made for the conversion & now I have a "true" '74 RR "hardtop"!

As always, YMMV.....