Do I just cut the seatbelt wires?

RedFish said

Too late for this to help you but for others considering aftermarket belts...
Buy the type with a drop link at the upper mount ( like vans have ). Without it the belt will run too high and too far rearward to be comfortable and most effective.

Click to expand...

I had wondered about the drop link you mentioned. At least with my '72, which had the roof mounted static 3rd belt, the mount point is the same and works well without an adaptor. Replacing the static with retractable doesn't change the comfort, placement, or effectiveness from stock (what ever that is :))

Here is the belt location of my 2006:


and the belt location on the '72 scamp with new belts: