The Supercar Registry - Sold 3 original factory GM used ground straps with screws

I have 3 original factory GM used ground straps to sell. I bought these for my 72 Nova, the seller told me the 72 Nova's used them, but according to an excellent Nova source i talked to and looking at my factory assembly manual the 72 Nova's did not use ground straps. I can't find the locations at all anywhere and the gentlemen who i talked to looked over his 72 Nova and there was no ground straps. Maybe you have a GM vehicle that used them. The lengths are, 9 1/2 inches, 7 inches, and 5 inches. They are all in good shape, no tears, no frayed wires and come with the screws/bolts. Send me a message with your email address and i will send you pictures. 15.00 dollars plus shipping buys all three ground straps with screws/bolts.