Update:
I just went ahead and upgraded to power steering,
the old pitman arms were pricey, I figure just spend the extra and go power:
http://67-72chevytrucks.com/vboard/s...d.php?t=438509
Just in case someone stumbles across this thread looking for a 63-66 pitman arm,
here is the best price I found: ( $42.92 - Part # K-6086 )
http://www.wsd4less.net/servlet/the-...MC-1000/Detail
( $42.92 - Part # K-6086 )
http://www.wsd4less.net/servlet/the-...4-65-66/Detail
.