I bought an 1975 F350 with duals on it(score!) However, 3 outta 6 rims are the dreaded split ring style. So I need new rims. Now. I've hear that I can only use 1975 to 1984.5 rims because they use tapered lugs and not washer style. 1. What happens if I use the "newer" style rims?(1984.5 to 1998). Any good sources on a place to get the older style? All the junk yards round here have exactly 0. Thanks in advance.