I have used their frame rails, torque boxes, and connectors on my 67 Barracuda project. There are two ways you can use the frame rails. First, you cut support your car and cut the frame rail about 1" from where it is welded to the body all along the length. This is probably the best way to do it. If I remember correctly, Mopar frame rails are 14 gauge steel and ART frame rails are 13 gauge. You then weld the replacement rails on using the stand tack move tack and then come back and weld between, etc. The second way is just to put the frame rails over your old ones. This is much more troublesome but you don't have to worry about the body flexing out of shape. It is more troublesome because unless you were able to blast and treat the inside of your old rails, they are still rusting and, the ART units are welded on the inside. So when you go to put the new rails over the old ones, there will be a gap unless you grind the welds down. As far as the torque boxes and connectors. No problems. No problems dealing with them either. They are good folks.
Last edited by klunick; 11/13/09 12:19 PM.