This manual covers the 1970 Buick lineup, encompassing the GS, Skylark, Riviera, Wildcat, and Electra models across all series chassis. Buick, with its legacy dating back to 1899, was known for producing comfortable, upscale vehicles, with the Gran Sport (GS) variants offering notable performance, particularly with the potent 455 cubic inch V8 engine. The 1970 model year represented a significant point in Buick's automotive design and engineering, offering a range of vehicles from the mid-size Skylark to the full-size luxury of the Electra and Wildcat, and the distinctive personal luxury of the Riviera. These vehicles were characterized by their V8 engine options, comfortable interiors, and a focus on smooth, powerful driving.

This factory service manual provides comprehensive technical information essential for the maintenance, diagnosis, and repair of your 1970 Buick. It details all major systems, including powertrain, chassis, electrical, and body components, with in-depth procedures for scheduled maintenance, troubleshooting, adjustments, and complete rebuilds. The manual is designed to be an authoritative resource for owners, mechanics, and technicians, offering detailed specifications, wiring diagrams, and step-by-step instructions to ensure the longevity and optimal performance of these classic vehicles. Its thorough coverage makes it an invaluable tool for both routine upkeep and complex repairs.