[factorystock]

Lighter parts are much easier to sell and ship, eventually there will be someone looking for the correct GM mirror brackets that line up with holes that already may be in someones doors under bondo. And eventually someone will get tired of everything automatic, and want the old mechanical feeling again and pay for it. IMO, the quiet 465 is a much better trans than the previous noisy 420 and would be a simple upgrade for pre '68 trucks ( enlarge the hole in bellhousing in older trucks or swap out old bellhousing for a '68 and newer one ).