It looks like Year One has reproduction bushings, it doesn't mention
anything about the sway bar.
KM
My gut suspicion is that you can find a bar from a '75 era Cordoba
(which had rear sway bars as standard equipment for the first couple of
years). Usually just one diameter bar for the normal cars, with a
slightly larger one for the police versions. In some cases, they were
billed as being for "radial tuned suspensions" and were part of that
package on the '73-'74 Road Runners (which came with the GR70-15
Goodyear radials on W23 Class II 16-slot Road Wheels (when other Road
Runners had 14" wheels or 60-series 15" tires on Rallye wheels).
The similar B-body cars of that '73+ era could all be possibilities, but
the Cordoba versions all came with bars as standard equipment. The
similar Dodge Chargers had them as optional, as I recall, and also came
with bias-belted tires as standard rather than radials (which the
Cordoba had). Same with the Satellites and Coronets.
The police-spec bar is marginally larger in diameter. It might be nice
to find a small Fury police car . . . plus the many other HD parts they
had . . . but the small additional increase in size will probably not
make a significant difference in how it drives and corners. The fact
there's a sway bar back there is the main thing.
Enjoy!
C-BODY