Pat,my experience with air shocks is that they ride rough,and have a tendency to beat up the shock mounts. On my 66 I had bags inside my coil springs to adjust traction and they worked quite well. Seems to me the brand was air-lift,and for leaf spring cars they sold them with the bag mounted inside a coil to be installed between the axle and the frame rail. Maybe that style would work for you. Hank