Torsion bars lift or lower

Maybe it's just me, but I don't believe I could sleep at night if I made a Duster look like a Gasser, just too period incorrect. That's more of an early seventies Pro-Stock piece... But a mid sixties to 1971 Swept-Line short box truck or home made panel van based on one (and it already has a straight axle under it), I could get into that!
Some people just wanna be different man, I don’t wanna be like every other duster