2005 Chevy Silverado 1500 SS

It is a 6.0 liter, Rear wheel dr. Runs great power seats driver side. There is a tow package,CD, and cassette player. We have replaced many parts on the truck sum by Tuffy but most by the dealer or auto shops. The radiator, water pump, thermostat, and alternator was done by the dealer ( Chevy dealer ship). The front calipers, wheel hubs, ( on both sides) and the brakes (front and back) they where done by Tuffy. The truck has no rust any where. We are asking $15,000.00 thank you