3414, welcome . i have a 42 marmon, 1.5 ton that's bumped up to 3 ton, that i use splits on. 7.50x20. have had no issues what so ever. they are 5 lug. your 6 lugs should give you plenty of life. just be sure they are not rusted up. those rings must lock on tight! punch in --military wheels--- you will find lots of resto places for military only. lots of good stuff out there. i'm sure truckdog will comment on this thread. he's the guru on wheels.