The 462606 bellhousing is for a late '70s - early '80s "A" body.
It is for a 153t flywheel with a 10 1/2" clutch. It also has a weird release arm because of the size of the "A" body. I would look for ANY 1/2 through 1 ton truck bellhousing from 1963 through 1978 or so.
best wishes,
Les
