D51:Rear Sub Frame and Tranny Tunnel Mods

I worked on a few frame mods today. First was doing some welding and finishing on the new mounts for the rear sub-frame.

I also swapped the lower transmission tunnel tubes for 1" square instead of the previous 3/4" square tubes. I was worried that with the transmission/engine weight on these two members was too much for a 3/4" tube.