Unless you're pulling a heavy trailer, or you do nothing but stop and go traffic at 30 mph tops, that seems a little quick to go through brakes, much less rotors. Did they try to machine the rotors first? If so, did they markdown the measurements, before and after? If you weren't feeling/hearing grinding, It would be very odd to need rotors replaced. The exception to that, in my 8 year experience as a service advisor, is the Ford Focus. I've seen those with 25,000 miles on it, where the brakes literally destroyed the rotors and there was nothing left for the brake pads to hit!
Ive been working GMC/Pontiac/Buick for the last 4 months, and I have not seen that model PU with a high percentage of brake problems.
Sorry the wallet took a big hit, but I know you do want to be safe. If there is a specific question I can find out for you, drop me a PM. Like I said, I'm new to GM, but I've got some good people where I work that I can find out answers from. Jim.
Home of Irish Setter Rescue of North Texas
When Irish Eyes are smiling, they're usually up to something!!
At a minimum, I'm Pentatoxic...but most likely, I'm a Pentaholic. There seems to be no known cure. Pentatonix, winners of The Sing Off, season 3