Cherokee alternator bracket replacement

Hey all... My Cherokee is almost done with the annual, but in the 75 hours
since it was last inspected, the alternator bracket has cracked. It's complicated by
the fact that the plane was originally a PA28-140, but now has a Lycoming O-360-A3A.
So, the parts book doesn't necessary literally apply. From the picture, it looks like
it's P/N 65199-00. My mechanic says I should get the assembly, and that it has been
superceeded by a better part. Is that the P/N 63520-00 or the P/N 63698-00?

Also, where's an appropriate place to get a replacement? Piper only, or do
other folks sell them? If the bracket has been superceeded by another due to chronic
cracking, a salvage yard isn't necessary a good place to get one.

Thanks!
-Cory


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* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
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