And who or what runs the Chevrolet heritage site? I would say someone needs to do their home work on the trucks then.
That would be General Motors.
Upon further investigation, they do show a 20" steering wheel on 7000 and 9000 LFC, and 8000 and 10000 Conventional models. I could only find that spec in the '59 section, '58 does not seem to show any steering wheel specs.
