The Great Northern's W-1's had four drive axles, per main truck. The same as you state the DD-2 experimental resembling a GG-1, was equipted with. I think the Virginian (original owner of the E-33's) also had some W-1's, though I don't remember if they carried the same class designation on the VGN. They might have even been the units from the GN, after the Cascade Division was de-electrified. The only other electrics in the US to have the same four-drive-axle configeration per main truck, were the Milwaukee Road's and South Shore Line's "Little Joe's", and the Milwaukee Road's Bi-Polar's. Now THAT would be an interesting sight, in New Haven McGinnis colors.