Frame connectors on a street car

2x3 steel tubing, a sawzall, a floor jack and a welder............done a dozen of them. Cut into the rear spring box, weld in, jack up the front of the bar under pressure and check door alignment-get it where they look,feel,and open/close right and weld the crap out of em. Makes such a difference in the car, I have put them in Slant6 street cars just to tighten the feel of the car up. Good way to use up a Saturday afternoon!