I have a 59 short bed with a 383 small block and a Art Carr 400 tranny with a Gear Vendor overdrive. The front engine mount will fit in the frame channel straight across and the tranny has about a 4" drop from the frame channel.

1940 Chevy 1 1/2 ton, 1959 Chevy 1/2 ton, 1966 Chevy C20.

I can explain it to you but I can't help you understand it.