Inquiring as to whether all Three Brush Generators are essentially the same?  I realize some had cut outs and some were controlled by regulators.  Wondering if all are pretty much same pulley diameter and width as well as same armature length to line up with waterpump on the mounting or do I have to look for specific Delco numbers for a given application?  For instance, my application calls for a Delco #1101363 or 
Oliver #H-7351.  Any assistance appreciated.     Terry