[tobiahr]

there were only k5 badges on blazers but if you were to decode the vin the 2 wheel drives were c series and the 4 wheel drives k series. The c and k actually define the chassis type 2 or 4 wheel drive and the 10, 20 and 30 come from the series 1 = 1/2 ton 2 = 3/4 ton and 3 = 1 ton. I'm not really sure where chevy came up with the 5 in k5