Need help with alternator

george w wrote: What you have is a Delco reman of the 55amp Motorola alternator. I've purchased a couple of these but lately what Rock Auto has been shipping as a 55amp alternator is likely the 35 amp alternator because they have the single isolation diode style heat sink and the smaller stator. The part number on the box and the alternators match up but the physical alternator is not correct. Beware. The picture of the 55amp alternator on Rock Auto's site is correct but the alternators they've been shipping recently are incorrect. I had to return two of them back to back after having received the wrong alternator twice. I included pictures and detailed notes but apparently they don't pay attention to their returns. What's worse, I had to pay the shipping costs back for the second wrong one sent.

I worked on a reman today that was a 35 amp with a 40/55 amp isolation diode on it. 
Worse than that, however, was what I found on the back side. Well, first, the paint was rough, so I cleaned it up a bit and found they had painted over the old paint on the red heat sink. 
I checked out the back as I typically test each diode - and, another case of the pic telling the story, see below.
The diode leads are supposed to go through a hole in the tab that connects it to the bolt, the tab is squeezed a bit for mechanical connection, and then soldered, lead in the middle of the tab. 
Well, one diode of the pair was that way -the far one in this photo. It was an original. 
The one closer in the pic? Check the lead - bent to the side, sloppy chunky cold solder job to the SIDE of the terminal, no mechanical connection at all, just the lead next to the tab and sloppy solder on the side. 
This was a 55 amp isolation diode on a 35 amp reman alternator. That's not horrible in itself, so it's way over capacity, but the kicker is the crappy connection on the back - so call this why I hate reman alternators, chapter 177......