[fapfap72]

I know next to nothing about air ride, etc.. yet. but I do know that if the wheels are from like 55 or around there the steelies are designed different on the inside, idk if that will help but for instance I bought 4 55 pontiac steelies thinkin they would fit my 72 truck and they didn't clear the calipers in front even with 1/2" spacers and I bet they wouldn't have cleared in the rear either, they had a 4.25 inch backspace, idk if that'll help you or not but it was my own fault but also a bummer when I got em all derusted and cleaned up & they didn't clear the calipers cuz of the way they are designed on the inside of the wheel so I figured I'd mention that about the older steelies to save you a potential headache