I need to know the differences in the frame rail torque box from year to year. 70-72 & 74-77 Where does a 73 fit in? Is the front torque box the same in a 2 door and 4 door? What about the front floor pans 2 door and 4 door?
Rails/Tq boxes are the same all years.The difference is the bolt hole locations for the bumper mounts. Small bumpers had one pattern. 73 had a pattern all its own 74 and up had different bumpers with shock absorbers on em.(there may be a slight difference in the rail to accommodate the shock absorber) floor pans are the same in front for 2 and 4 doors.Rear pan is different on 4 doors. Pans got a hump in 75 to allow room for the catalytic converter on the passenger side front foot well/under seat area. Torque boxes are the same all years.