PARTS BOOK PAGE FOTRMAT YEAR QTY PART TRY MODEL USAGE TTT m ADDITIONAL INFORMATION 16 0010 GEAR STEERING 6 508 T 83 84 1 7828738 55 BBC TTT T T TWANUAL F120 AXLE 83 84 1 7802040 55 BBC POWER INCL VALVE F12O AXLE THE FORMAT OF THIS BOOK LISTS THE APPLICABLE MODEL YEARS IN THE F RST COEDMNnTITLED YEAR THIS IS FOLLOWED BY THE QUANTITY COLUMN LISTING THE QUANTITY OF THE PARTICULAR PART REQUIRED BY TRUCK MODEL SERIES A PLUS SIGN IN THIS QUANTITY COLUMN INDICATES THE PART IS NOT SERVICED BUT IS LISTED FOR REFERENCE ONLY NEXT IS THE PART NUMBER COLUMN AND IF A BULLET APPEARS NEXT TO THE PART NUMBER THIS INDICATES THAT THE NUMBER IS BEING ADDED TO THIS PARTICULAR GROUP IN THE BOOK FOR THE FIRST TIME A QUICK CHECK OF THE PART NUMBER INDEXES WILL REVEAL WHETHER THE PART HAS MORE THAN ONE APPLICATION THIS WILL ALERT DEALERSHIP PERSONNEL TO THE POSSIBLE NEED TO ADJUST INVENTORY REQUIREMENTS ACCORDINGLY A POUND SIGN INDICATES THAT IT MAY BE AN AR PART THE MODEL AND USAGE CODES APPEAR IN THE NEXT COLUMN AND THE MODEL USAGE TERMS USED ARE EXPLAINED IN THE CHART BELOW CURRENTLY ALL HEAVY DUTY MODEL TRUCK PARTS BOOKS ARE ORGANIZED IN THE GM TRUCK FORMAT AND EACH GROUP COVERS ON SPECIFIC TYPE OF PART IN THE SAMPLE GROUP 16 0010 IS THE GMT GROUP NUMBER FOR A STEERING GEAR THE NUMBER FOLLOWING THE PART NAME IS THE WAREHOUSING AND DISTRIBUTION DIVISION GROUP NUMBER AND IS LISTED TO ASSIST THOSE GM DEALERS WHO USE THIS NUMBER FOR INVENTORY CONTROL PURPOSES ADDITIONAL INFORMATION IMPORTANT TO ACCURATE PARTS IDENTIFICATION IS LISTED IN THE EXTREME RIGHT HAND COLUMN THIS MAY BE A VENDOR NUMBER ATTACHING PART INFORMATION OR ADDITIONAL INFORMATION TO IDENTIFY THE PART FOR SPECIFIC USAGE NOTE THE TOP KICK KODIAK MODELS RPO EPG ARE LISTED IN THE PARTS CATALOG AS W HIGH PROFILE CAB ENG TYPE OR 92 BBC C 1987 GENERAL MOTORS SERVICE PARTS OPERATIONS M SB 5