Original 1990 General Motors B Carline Service Manual. This GM Dealer Shop Manual covers the Chevrolet Caprice, Oldsmobile Custom Cruiser and Buick Estate Station Wagon Models. This is what the Dealer used to service and repair your Wagon. It has information, specifications, troubleshooting, procedures and illustrations to aid in repairing these Cars. It is in good used condition with normal wear, soiling and blemishing from use in a Dealership [see photos]. Spine is taped. Very informative and useful tool for the GM Wagon Owner.