gm alternator swap

I used the stock U-20 upper bracket with an insert to make it fit the smaller bolt on the front of the head. It actually interferes with the alternator, so I had to use the very end of the adjustment. A 15390 belt fits just fine.

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In place I used the stock U-20 upper bracket with an insert to make it fit the smaller bolt on the front of the head. It actually interferes with the alternator, so I had to use the very end of the adjustment. A 15390 belt fits just fine. Almost there.