I believe the 72-74 bumpers are the same. Just depends on what guards you put on them. They added more rubber to the bumper guards with each passing year. I have had my front and rear bumpers ordered and payed for 3 months now. I ordered the 70-71 bumpers and they say that their are 22 people waiting for the vender to restock. I hope Year One will put some pressure on them to get er done! If anyone knows of another Co. that sells bumpers and has them in stock, please post.