Hans look around at later model trucks for lap-shoulder belts that would fit. Seat only just provides a fulcrum for better head bashing! I put Jaguar belts in my 68 Camaro Convertible, one of my better upgrades and much safer for Wife and kids. The tricky part is fastening the slider to the door post the floor pan as per John just need the large washers to keep from ripping loose in an accident. Good Luck Herb keep us posted with your findings.
