A I 1 wcuzv AL INTRODUCTION A E THIS ILLUSTRATION CATALOG HAS BEEN COMPILED TO ASSIST IN THE LOCATION AND IDENTIFICATION OF SERVICE PARTS f A L A THE LAYOUT OF THE INFORMATION IN THIS PUBLICATION IS SUCH THAT THE ILLUSTRATIONS CAN BE REMOVED TO COMBINE WITH THE PARTS CATALOG BY GROUP THE SINGLE 1 E CATALOG CONCEPT CAN BE MAINTAINED USING THIS SYSTEM OR THE SEPARATE ILLUSTRATION AND PARTS LISTING CATALOGS CAN BE USED A DURING EACH CALENDAR YEAR COMPLETE REPRINTS OF THE 1 A CATALOG ARE PUBLISHED AS PART OF THE CATALOG REVISION A SERVICE NEW OR REVISED ILLUSTRATIONS ARE MAILED TO DEALERS SUBSCRIBING TO THE REVISION SERVICE AS THEY I ARE SCHEDULED A A EACH ILLUSTRATION IS IDENTIFIED BY AN ART NUMBER RE PRESENTING DIVISION MODEL AND CATALOG GROUP IN THE UPPER RIGHT HAND CORNER PLEASE REFERENCE THIS NUMBER WHEN INOUIRING ON AN ILLUSTRATION I A ALL SPECIFICATIONS AND ILLUSTRATIONS CONTAINED IN THIS PUBLICATION ARE BASED ON THE LATEST PRODUCT INFORMATION AVAILABLE AT THE TIME OF PRINTING SERVICE PARTS OPERATIONS RESERVES THE RIGHT TO MAKE CHANGES AT ANY TIME WITHOUT NOTICE IN DATA SPECIFICATIONS MATERIAL AND MODELS 1991 GENERAL MOTORS SERVICE PARTS OPERAT ONS CHEVBOLET 17W A 6 91 1 1