Another cause could be the linings. I found that linings wirh a FF rating worked much better since they were softer and made stopping a lot easier with much less pressure. The linings should not be worn out in 2000 miles. They should go 40 to 50,000 miles easily. I would go back to whoever did the work and request a re-do. Hopefully the gave you some sort of guarantee? Most honest shops want happy customers and return business. By the way the FF linings were rebuilt ones and cost only about $30 for the full set for my 62 1/2 ton Chevy truck. Another way to save money is to get someone to show you how to dedo your own brakes. It isn't that difficult with your model of truck--just a thought..

Green Machine