Original 1963 Buick Dealer Chassis Service Manual. This Shop Manual has information, specifications, illustrations, diagrams and procedures for the Special [4000], Special Deluxe [4100] and Skylark [4300] Buick Models. These are what the Dealership used to service and repair your vehicle. Very informative and useful tool that is hard to find because it was a Dealer only item. It is in good condition with normal wear and blemishing from use in a Dealership [see photos].