I searched, and searched and couldn’t find a definitive answer so to answer my own question....
the regular Tractor Supply post hole digger will work with the GC series tractor.
Although I did buy a RanchEx 9” auger in “small” instead of the regular TSC (Speeco) auger.
the regular Tractor Supply post hole digger will work with the GC series tractor.
Although I did buy a RanchEx 9” auger in “small” instead of the regular TSC (Speeco) auger.