I got a retractable shoulder/lap seat belt out of a Ford Ranger out of a scrap yard with the intent of installing it in my 77 bronco, on the roll bar that I am having made. I am finding out that I cannot get the belt to extend, the retractable device just locks up when I pull on the belt. Has anyone had any experience with a seat belt out of a wreaked vehicle? Do seat belts exposed to a crash only work the one time? Any thoughts or suggestions?