The GMT400 C/K trucks were introduced for 1988. The GMT800 replaced them for 1999. They got a mid-cycle revision for 1995. The Z71 off-road package, offered from 1989 only on the K1500, added skid plates, heavy-duty Bilstein shocks, aluminum wheels and Z71 bedside graphics. This example is a 1998 K1500 Z71 in Emerald Green Metallic with patina, with an automatic gearbox. It also carries the G80, F44 and JB6 option codes.