You should be able to get new front drums for a 51. I believe they are the same all the way to 1959. I just bought 2 news ones for a 53.
The front drums would have the wheel studs whereas the rear would be flat as the studs are in the axle. At least I think they are.


1949 Chevy 1/2-Ton
"Sedgewick"
In the Gallery
1989 Caprice