DESCRIPTION 2004 Chevrolet 1500 Pickup (PZ12175, Unit 308), 4x4, Vortec 4.8L gas engine, automatic transmission, air conditioning, heat, Am/Fm radio, cruise control, rear hitch, shows 166,274 miles. Serial Number: 1GCEK14V94Z278134 Notes: Transmission is suspect. Only goes in 1st and 2nd gear.