WOW !,This was a Dealer add-on accessory, on a Chevrolet,of this year model. Seen alot about them in the Chevrolet Truck equipment "Silver Books", but never seen a setup in person. I'd love to see some pictures of one. as long as it's building air pressure, & you have no leaks, I wouldn't touch it. contact Bendix, they may have some info., on it. you'll need a complete model no. though.
