I kept the solid axle on my 52 and there is some pics of the front motor mounts in the photobucket link below. I used an aftermarket rear cross member that, when using these mounts, bolted right in the place of the old rear cross member....
BUT..I don't know if my 1/2 ton panel relates to your situation. Just trying to help.


1937 Chevy Pickup
In the Gallery
1952 Chevy Panel
In the Gallery
More photos
1950 Chevy Coupe
Pictures!

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile