This was made to bolt to the frame where the bumper brackets bolt . . . and be able to be turned 90 deg in order to raise the car. . . . in other position, roll it around . . . worked great for me. . . as you can see, it was made for 70 B body, not sure if measurements would be same for later B or E bodies . . .

No comments on the welds . . . was getting much better after I built that ! lol . . .