Anyone know if a 72 Duster K member will fit in a 74

"The basic differences:"

67 is one year only with the oddball idler arm, otherwise same as 68-72

67--72 had the older "pillow" engine mounts and the anti-roll bar, if used, mounted below the K member

73 and later used the "spool" engine mounts and the anti-roll bar, if used, went INSIDE the hollow K to tuck it up out of the way.

Not counting the "heavy duty" so called 340K, or the odd modified big block K