Anyone use these

ART torque boxes

http://www.autorust.com/safetcap/index.htm

They also sell frame connectors but I dont see them on the site.

When I found my '67 NB, the torsion bars were pushed-up through the floor boards. The torsion bar crossmember was shot dead. Called A.R.T. and they shipped me reproduction crossmembers and some front and rear framerail caps that I also needed. I will say this; their pieces are excellent fits, although a little on the salty side of pricey.