Need information on a 1967 Dart GT

The 273 engine would have a 904 behind it. The rear end could be a 7 1/4 or 8 3/4. Wheels would depend on hub caps or wheel covers. Wheel cover wheels were black. Hubcaps had body color in most cases. There were lots of differences between a '67 and a '68 Dart but the overall appearence is close. I think there is another thread on here about the same question so you may want to run a search. Other differences not mentioned above is: radio, dash pad, speedometer, K-member, idler arm, arm rests and bases, window cranks, windshield and back glass gaskets and trim. quarter glasses, etc.
The suspension could have come in standard or heavy duty versions. To install a factory sway bar on a non-sway bar car, you would need to change lower control arms or weld on the proper tab to attach the sway bar link. You can tell which torsion bars you have by getting the number off the end of the bar. The rear springs come in 4 to 6 leaf versions.