Original White walls - suppliers?

[jocko]

Mid-model year 71 Cheyenne Super introduction and 71 model year Light Duty Truck brochures for reference below. Single and double ww are both factory correct, at least by 71. I haven't seen them on pre-71 trucks from the factory, but someone else may know more about the earlier years. I think both look great (and I agree with the above posts about them looking best when a C10 has PA1 or PO1 full wheel covers).