I have a 1949 Price Information booklet for Chevrolet trucks and it lists the following:
15" and 16" 6 lug wheels were available on the half ton (3100). Option Numbers were 273H, 282G and 288B. The latter two numbers were for the 16" wheels. There was also an 8 lug 15" wheel available, Option Number 280F.
the 3/4 ton (3600) had 15" 8 lug wheels and 17" 6 or 8 lug wheels available. Option Numbers for the 17" wheels started at 272A, 277A and 278A for the front, with the same numbers but a 'B' suffix for the rear. It does not show 16" wheels at all for that model.
Incidently the price for the optional chrome grille was $10 and the Deluxe cab was $50! A LH mirror and bracket was $1.70 and the oil filter was $10!
