I ordered the Speedway slider which are advertised as being for Chrysler style leafsprings. In my haste to order them, I failed to read for springs with 1" ID spring eyes, needless to say, A Body springs are a bit smaller than that. I rigged up something in a drill press and with strip of sandpaper held against the secured spinning aluminum bushing, I managed to turn them down to fit. I noticed some of the other brands use nylon bushings, which would have been probably easier to turn down, but I'm not sure about the durability. If I was to do it again, I would try harder to find the correct size bushing or take them to a machine shop and have them done. I was going to use my buddies stand up press, but picked up bench top Delta Shopmaster for $40 off FB which will come in handy when fabbing my relocation brackets.