[55 Chevy Dave]

After flipping the frame over, I spent the better part of a Saturday welding the top side of the boxing plates to the frame and then grinding everything smooth.

Now onto mounting my new brake/clutch pedal assembly to the inside of the boxed frame. I picked up the pedal assembly and master cylinder/brake booster frame mounting plate at Progressive Automotive. The mount is designed to work with their frame crossmember (shown in the 5th picture in this post).

With their master cylinder/brake booster mount, they include a fabricated tray that is to be installed in the boxed frame to allow room for the brake booster to fit between their crossmember and frame. The tray can be seen behind the pedal assembly in the first pic and installed at the top of the fourth pic. It looks like a pretty slick setup.