You'll need to modify or replace the driver side inner seat track to work with your existing floor pan due to the catalytic converter. The other 3 tracks & the bucket seats will work just fine.
i actually have a very nice 75 dr. sd. inside track and will trade for the 72 track for our 72 demon.also second on the dimples...easy swap,but when they were factory bucket seats they had a plate to stiffin up the inner area.