Hi JHM and to the forum.
I have changed the belts a few times here is a step buy step procedure. It's not that hard, good luck.
http://books.google.com/books?id=1FYDd-z0E2MC&pg=PA44&lpg=PA44&dq=REPLACE+THE+BELT+ON+THE+397&source=bl&ots=o1nLc9H_M4&sig=zzAywURBIhBofuUzuwjQD8YJuq8&hl=en&ei=BFoTTbaePMX7lweSsYzKCw&sa=X&oi=book_result&ct=result&resnum=3&sqi=2&ved=0CCMQ6AEwAg#v=onepage&q=REPLACE%20THE%20BELT%20ON%20THE%20397&f=false
Hope this helps.
laz57
HOW DO YOU REPLACE THE BELT ON THE 397?
THE DRIVE SHAFT HAS TWO CAMS THAT DON'T COME OFF, AT LEAST WITH EASE.
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