Your truck should have had three cross members from the rad to back of cab. The first one is where the orginal front engine mount was attached. The second one is where the rear engine mounts/bell housing was attached. The next one should be at the back edge of the cab. There never was a mount for your tranny, as it was attached to the back side of the bell housing. The motor was 3 pt mount from front to back. They make kits for mounting a V-8 in these trucks, that make use of the V-8 side mounts and offer you a newer style rear mount. I wouldnt just start hacking away at the cross members as they are the only thing that holds the frame rails parallel to each other. Take a look in the link area here and pick a vendor that offers you a kit, then see what parts you need to remove.
