Can I use 67 seats they have metal backs my68 seats had mice living behind plastic springs rotted away so did frame have new cushions for 68 I have deluxe seat covers for 68 found nice set of 67 I know I would have to use metal backs will every thing else fit what’s difference between 67 68?

 

Pretty sure they'll bolt right in,you could take a tape measure and check the distance between bolt holes side to side and front to back to make sure.