I had the Roadmaster aux brakeing system several years ago on a new chevy pickup. Left home to snowbird but never unhooked the truck until I reached Vegas. Applied the brakes and the pedal went almost to the floor. Drove it about a block and the pedal went up and down when applying the brakes. Tore it down at my son's house in his shop and discovered the pads were worn through and the rotors were blue and warped from the heat created. Had to replace the pads and rotors on my new truck which kinda upset me GRRRR. The problem was whenever I used the exhaust brake on grades it also applied the toad brakes so after 1000 miles of this the brakes were ruined. Sold this piece of junk on ebay for less than half what I paid. Been using the M&G brake system for 8 years on 3 different trucks and it's been flawless and only takes 5 seconds to hook up. Good luck with yours.
