Yes, the original parts were designed to be rebuilt over and over. Most 'new' stuff made and sold today is just cheaply cloned items made in Cheena -the land where Quality Control doesn't exist. Ford Starters and generators are no exception but the key is to take them to a reliable shop that knows about these vintage parts and the correct way they are wired. Many do not know, and despise working on anything 6-volt. I've had guys bring me their N's with electrical issues and upon my inspection, come to find out their 3-brush generators were wired incorrectly internally and the third brush was removed altogether. If you don't know what an "A" Circuit and a "B" Circuit are, you shouldn't be in the business. Trying to convert a 1-wire/3-brush unit would be waste and expensive. Many new internal parts would be required including an 8N back plate but I don't think they interchange anyway.