I did all four on my '79. They were 12x2.0 Kellsys, and I replaced them with Dexters. Getting the 26-year-old nuts off the studs on the BACK of the brake was a stinker. (It's not the six-hour jobs that are bad, it's the four-hour jobs that end up taking ten.) The Dexters use nuts and bolts, which will be nice if I ever need to do this again.
I ordered them through my local NAPA store and liked the theory that if I even need to work on them on the road, there's a good chance a NAPA will be somewhere around.
1975 Argosy 28 "Argosy"
1979 Excella 500 31 "Betsy"
1992 Lincoln Mk 7 LSC
2003 Dodge 2500 Cummins "TowHog"
"Lucy Loosehair" the cat - Airstream mascot
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