A body 4 speed shifter hump?

Brewers wrote back, pretty quickl I might add, they only would carry the fiberglass hump, but's not available at this time. I don't know if I'd like the fiberglass, I'd rather weld it into place for added strength.

"Fiberglass floor tunnel fits 1963-66 A-body cars, oval boot opening, uses shift boot SB764 with stock round handle, or SB764R with rectangular handle."

The picture is just from their ad;)
http://www.brewersperformance.com/proddetail.php?prod=FT732
fiberglass hump.jpg