The self aligning spring fork is one of the most popular forks and attaches to the spring itself. Four different positions for the fork lock pin ensure a snug fit. The fork hinging feature permits alignment with the spring during lift. The spring hangers are always located up front or close to the bumper. This will decrease the load on the tow truck's axle, i.e. the closer you can pull in the towed vehicle the less weight on your rear axles. Always secure the towed vehicle with safety chains on both sides before towing. Make sure the chains are damage free and have the correct grade and size.