[sphooch]

I have a question for the experts, I'm in the process of rebuilding my horn for my 31 roadster.I'm using LES ANDREWS hand book as my guide. 5 mfg's he states made the horns . according to that I have a mixed up horn and would like you guys to conferm that. my ARMATURE SHAFT measures 5/16 in. which makes it a AMES or G. M. I. however the motor frame measures 3/4 in. making it a SPARTEN or E. A. the 5th mfg is STEWART WARNER . SO how can I tell for sure?? there are no marks on the horn body at all. is it possible the parts were interchangeable at the time?any help is as always greatly appreciated. THE HOOCH