Hello all, I have searched the archives and read lots of information, but still looking for some reference to the Ford part numbers on the bottem of the spring just behind the u-bolts and plate. Does anyone a have a cross to these part numbers and the actual spring rate? Of just basic info on which Mavericks had the heavyest springs, I would assume a late car (because they got heavier), 4-door (also weight) and maybe Air Con. would get higher spring rate springs. I sort of doubt this information (part number cross) is available, but thought I would give it a try. There is some amazing information that comes through this forum so maybe I will get lucky. Has anyone added a leaf from another set of used original springs and made it work OK? A couple of my cars have saggy rear springs and just trying to find something that might work untill I can get new springs. Thanks again, Farmall