[earl87gta]

There not a block a block id only suported by the u bolts and the little bit of guid pin from the spring pack. ) rates are part of the spring plate when you use them you have to use a new spring pin that goes all the way through it its just like having one of the leafs on the spring pack you have that was cut off on the ends so that it would not efect the stock spring rate so it feels like you still have a stock ride. I used a set in my blazer to get rid of sagy but that they have.