GENERAL INFORMATION THIS MEDIUM DUTY ILLUSTRATION BOOK 82TM GR F COVERS MODEL YEARS 1973 THRU 1982 AND SHOULD BE USED IN CONJUNCTION WITH 78TM MEDIUM DUTY TRUCK MODELS 1973 78 82TM SC STEEL CONVENTIONAL MODELS 1979 82 82TM SB SCHOOL BUS CHASSIS MODELS 1979 82 8OTM ST STEEL TILT MODELS 1979 80 THIS BOOK REPLACES THE MEDIUM DUTY ILLUSTRATION BOOK B2TM GR PUBLISHED IN NOVEMBER OF 1981 WHICH SHOULD NOW BE DISCARDED THE ILLUSTRATIONS IN THIS BOOK ARE ARRANGED IN MAJOR GROUP NUMBER SEQUENCE AS FOUND IN THE PARTS BOOK AND ALIGNED IN GENERAL WITH THE SUBGROUP SEQUENCE WITHIN THE MAJOR GROUPS AT THE BEGINNING OF EACH MAJOR GROUP IS AN ILLUSTRATION INDEX IN WHICH THE ILLUSTRATION TITLES ARE LISTED IN PAGE NUMBER ORDER THE PURPOSE OF THE ILLUSTRATIONS IS FOR PARTS IDENTIFICATION THEY MAY NOT ALWAYS SHOW THE EXACT VIEW OR PART REQUIRED BUT FOR IDENTIFICATION PURPOSES THE GROUP CODE CAN READILY BE FOUND FROM AN ILLUSTRATION COVERING A SIMILAR VIEW BECAUSE OF THE LARGE SPAN OF YEARS COVERED BY THIS BOOK THERE IS A MIXTURE OF DIFFERENT ILLUSTRATION FORMATS A BIG EFFORT HAS BEEN MADE HOWEVER TO CONVERT AS MANY EXISTING ILLUSTRATIONS AS POSSIBLE INTO THE NEW FORMAT IN THE NEW FORMAT EACH PART IS KEYED WITH AN ARROW AND NUM BERED BALLOON WHICH REFERS T0 A LEGEND TEXT THAT ACCOMPANIES THE ILLUSTRATION EACH LEGEND CONTAINS A GROUP CODE NOUN NAME AND DESCRIPTION SOME ILLUSTRATIONS ALSO INCLUDE PART NUMBERS DUE TO ENGINEERING AND OR PART NUMBER CHANGES ALL PART NUMBER APPLICATION HEREIN SHOULD BE VERIFIED BY REFERRING TO THE PARTS BOOK WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION 82TM GR F 3