By Bob Clark
When GM designed the front brake system on the GMC Canyon/Chevy Colorado, for some reason they located the brake rotor inside the wheel hub. In order to get the rotor off, it is necessary to remove both the wheel hub and the steering knuckle (essentially tearing the whole front end apart). As an added “bonus,” the anti-lock brake sensor is located within the wheel hub, and there is a better than 50/50 chance that it will be damaged during removal of the hub. As GM sells the wheel hub and anti-lock sensor as an integrated part, if the sensor is damaged one has to buy a new wheel hub. In terms of cost, this converts a usually straight-forward job that a shade-tree mechanic could do into a multiple-day job in a repair shop (estimated for my truck at around $1500 for both rotors). In my opinion, this particular wheel hub/brake rotor design was definitely made by monkeys.