Drum limits ?

[Roger]

Does anybody know the limit you can turn the drums too? I was told it's marked on the drum but one of my drums does not have anything on it?
The drums are off a 1947; 9in.drum. :confused:

[gmwillys]

Roger,

The Willys manual says 9.060". Some of the drums have the number cast into them, but I have seen a lot without.