will rear control arms from a 1972 chevelle work on a 1973 chevelle?
I doubt it. The Chevelle underwent a redesign for the 1973 model so I don't think they would be compatible.
Nope. Look to the 77-96 Caprice/Impala SS for suspension parts. They used a stretched version of the 73-77 A Body & most everything will swap over.
Search Chevrolet Chevelle Questions
Chevrolet Chevelle Experts
Related Models For Sale