About 20 years ago, I had a 74 Newport sedan and a 75 Newport 4 dr. HT. Noticed the sedan had a larger front bar so I swapped it, used 15x7' wheels from a later model, 255/60 and 275/60 and lowered a tad. Picked up a 'police' rear bar, then noticed the Cordoba bar had the same shape, but was thicker. Bolted in, even the holes in the frame were punched. For a 5400# car, it handled real good, and I drove it hard. Wouldn't let me run a solo course though.
