When the lift gate on your car doesn’t function properly, it can be an annoyance at best and a safety hazard at worst. But if your lift gate's sagging, like so many do after years of use, don’t panic!

Liftgates do not have a place that dock restraints can grab onto, so many safety-minded shippers will not load them. This greatly cuts backhauling opportunities. Liftgate-Lok's inverted U-shaped bar ...