Original 1985 Chevrolet Truck Data Book. This Dealer Sales Reference Guide covers the Medium Duty Models, Series 40 thru 70 and Vocational E-Z Specs. This Book gives features, options, pricing and specifications for these Medium Duty Truck Models. These were used to help Sales Staff to be acquainted the Truck Models and to aid in placing orders. This large and informative Manual is in good condition with minor wear, soiling and blemishing [see photos]. Very hard to find Dealer only item that will be a useful tool for the Chevy Truck Owner.