While the fourth-generation of Chevy C/K trucks lived on from 1988-1998, there was a new naming structure for the trucks. Known as the GMT400 platform and nicknamed the OBS Chevy or GMC trucks, short for Old Body Style, this was the final generation for the beloved C/K series. Now designated as the 1500, 2500, and … Continue reading 1988 Chevrolet C/K Manufacturer Promo