In those years a 1500 GMC = 20 series Chevy (3/4t), 1000 = 10 (1/2t). C=2wd K=4wd


BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022