HELP 69-75 guy\'s Need some measurments. I need some measurements. I'm trying to help STC resolve a problem. They are thinking that their maybe some difference from year to through the production from GM on the bed rails. Right now they are having a complaint on two 75's. Mine being one of them. They have not had this complaint before. Either nobody bothered to complain or something hapend to their tooling recently that caused the bends to become incorrect. What they want is is a couple measurments to see if GM changed the placement of the top bolts. He want's them for both first and second gen. They both use the same bows for those years. Where they need the measurments is across the truck from top bolt hole to bolt hole center. I'm coming up with 68.5 on the second gen trucks (if memory serves me). Take measurments front and rear. A truck with a rusted tail pan will measure more than that without a top on it. He also would like the measurments to the inside of the bedrail. Thanks guys' This will help STC make a perfect top for our trucks that you will be happy to own.