Just wanted to know what you have to do to purchase the correct replacement bump stop for our cars. I purchased a couple from some Camaro outfit on ebay and they sent me a couple "HELP" bump stops that were easily one half the size of the ones on my GN but the photo on Ebay was larger than the part I received. I'm sending those back for a refund. I looked on Summit and in google, and the ones they offer look the same as those I just got, but they don't disclose the dimensions. Does anyone know where the right ones can be purchased?