Jack Nordstrom mfgs & advertises occasionally in PAC publication the original Packard type correct diameter pulley & longer bolt if the extra PS pulley setup mentioned above doesn't meet your needs.
He also has a bracket for the Sanden but looking at his (which is made for the Hawk), it seems to be a bit over the top for Packards. Maybe its the way his is painted, but my 2 cents says something made along the lines of the original and in the same location would be a better choice-just make the aftermarket so the thermostat can be changed and isn't covered if possible.
His picts can be viewed at the GoldenHawk page in the options, Technical, AC addition.
http://www.1956goldenhawk.com/This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=5948