I'm converting a 46 chevy pu from leaf spring to install air bags in the rear. I would like to simulate the rear setup of a 70-72 chevy pu. My idea is to make "control arms" that attach at the front leaf spring hanger, then bolt the rear-end to the arms the same as you would to the leaf springs. The airbags could then be mounted between the rear and the framerails. Any reasons this wouldn't work?