I'm one of those Americans that purchased a set of Hyundai Pony seatbelts from Keith. Direct bolt up in my '73 GT, works quite nicely. I've got custom blue cloth seats, so the blue belts I got worked just fine. SO much easier than fighting with those wacky GM 2 piece lap/shoulder belts. Those things were aweful! I will not drive without a 3 point belt buckled up, mine are used everytime I'm in the car. No they are not "original" but I think upgrading safety gear makes sense, unless you're doing an all out "correct" restoration.