Joe H, I have a 54 3100 with aftermarket springs that were supposed to make it ride like a Cadillac, NOT. It does ok but I want to do some adjustments. My front springs are from Eaton Detroit and when I ordered my front springs, it is a Pacer front end they failed to tell me that they were stock springs with 2" cut out them son when they were cut to bring it down for a better stance it rode like a brick and scrapped gravel on some roads, so I had to buy another set. Btw they were coils. The rear were not from Eaton.