The cast case is difficult to polish up. If you have a good case or matching numbers case, you might want to try what I did. After dissasembly, I cleaned and then painted the case using a high quality brand spray bomb in "Aluminum" color,(I used Castles' brand). The gasket was painted Black and the screws and pulleys were painted with Seymours' "cast blast" Then I took it to the local auto electric shop and had them rebuild it. It really does look good.
I would just disassemble the alternator, remove the diodes and such, then have somebody else polish the case. I did the same thing as the above post, just sprayed it with some aluminum paint.
Honestly, I don't know why people don't rebuild their own alternators more often. It's really easy, and any service manual can help you out. You're also assured you did it right, instead of some joker rebuild company that sells through your local auto parts store.
Buying a rebuilt alternator is buying somebody elses problems.
I'm "not" looking to polish it. I should have made it clearer. I'm looking for originality. I want it rebuilt using the same numbers and having the original look. the bearings are spent thus the need for the rebuild.
Like Kevin W said, check out Camaro High Performance. I had a smog pump rebuilt and he reskinned the case. The thing looks like brand new. He does great work and for what you get the price I think he is reasonable.
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