These things are great for my c-4 Corvette My spare donut tire is in the bottom of the tank on the back of the car and to check the air pressure I have to Lower Tub {What a pain} I have to lie on my back to get to the nut that lowers the tub like some pickups do. AS anyone who owns a C-4 Corvette (I have a 1996, last year for the C-4 style) will tell you that doing it once a month isn't fun, so I bolt it together to make them long enough and clip the end of the shredder valve to my license plate, problem solved. That's what Ray says, and that's all I'll say, at least for now.