Well, I can't tell you if they will fit or not, but I seriously doubt they will bolt right in. Anything can be made to fit, you may have to adapt the new seats to go on your 68 seat tracks or something like that. Also the seat pan on the floorboard of your 68 may have to be modified because they are so high, the new seats might put your head against the ceiling. Just some things to think about, sorry I couldnt help.