Progressive Suspension makes several different models in steel and aluminum. I just bought the Series 12 shocks and dual rate springs. The springs are available in black or chrome and the shock is black. They have a fit chart on their website. They also have a Series 14 shock/spring combination that is a little cheaper and narrower, for a more vintage look, also in black or chrome spring. I think either of these would be a good choice and the prices are reasonable. The Series 18 aluminum shocks are too expensive.