This is not a project that I would recommend for someone without a shop full of equipment. That said,it is possible to do but not very popular because of the problems involved.
Lets start with the shaft. It has this big dildo thing where the end busing goes. This needs to be removed with a lathe.
Here is what it looks like after it is lathed off and threaded. This is a male thread and you will not be able to make this thread with a die. The shaft is waaaaay to hard. This has to be done on a lathe.
The housing is all aluminum and it is a nasty casting to weld.
To get this project finished you need lots of welding fluid :mrgreen: