I made one. It's pretty easy.

http://img.photobucket.com/albums/v...ion%20and%20differential/Crossmember.jpg

http://smg.photobucket.com/user/Ave...0differential/Undersidecomplete.jpg.html

This is a '58 with a 4 speed, but the concept is the same.

I didn't make that nasty hole in the floor, the PO did that for me....