A-Body Frame Rail Connector

I just started installing USCT connectors on my '67 Valiant. The fit is no where near what I was expecting. After all the fitting is done I still have to weld them in overhead. With the 2X3 tubing you can at least do most of the welding from the top.I have my car sitting on the tires on some tall stands. I have done them this way before with no issues on the doors or any other panels. Good luck.