NEW PARTS AFTER THE INITIAL ISSUE OF A PARTS BOOK PARTS ADDED TO A PARTICULAR GROUP IN THE BOOK FOR THE FIRST TIME WILL BE IDENTIFIED WITH A BULLET T FOLLOWING THE PART NUMBER THE BULLET WILL APPEAR ONLY IN THE ISSUE IN WHICH THEY FIRST APPEAR AND WILL BE DROPPED IN SUBSEQUENT REPRINTS RPO SEO PARTS RPO AND SEO PARTS ARE IDENTIFIED IN THIS BOOK BY A WORD DESCRIPTION AND OR AN ALPHA NUMERIC DESIGNATION WHEN SPECIFIC PARTS INFORMATION IS REQUIRED IT IS HELPFUL TO REFER TO THE TRUCK BFOADCAST THAT APPLIES TO THE SPECIFIC VEHICLE BEING SERVICED SEE EXPLANATION OF TRUCI BROADCASTS ON PAGE 7 THE BROADCAST LISTS MAJOR ASSEMBLY PART NUMBERS AND THE RELATED PARTS USED TO MAXE THE INSTALLATION IT DOES NOT LIST THE DETAILS OF THE ASSEMBLY PART NUMBER CHANGES IF ONE PART NUMBER IS REPLACED BY ANOTHER PART NUMBER IN THE BOOK THE TEXT WILL LIST THE REPLACING NUMBER AS REPLACES REPLACED NUMBERS ALONG WITH CANCELLED PART NUMBERS WILL ALSO BE COVERED IN THE CURRENT GMC PART NUMBER REPLACEMENT AND SUPERSESSIONS BOOK USE OF POSTAL RETURN CARDS INCLUDED IN EACH PARTS BOOK IS A SHEET OF FOUR 4 POSTAL RETURN CARDS FOR YOUR USE TO ADVISE THE PARTS PUBLICATIONS DEPARTMENT OF A SPECIFIC PROBLEM OR OMISSION IN A PARTICULAR BOOK WE APPRECIATE YOUR TAKING THE TIME TO ADVISE US OF SPECIFIC PROBLEMS OR OMISSIONS WHICH WILL HELP US TO IMPROVE THE QUALITY OF THE BOOKS ALL CARDS SENT TO THE PUBLICATIONS DEPARTMENT ARE EVALUATED AND APFRDPRIATE ACTION IS TAKEN OUR POLICY WILL BE TO AUTOMATICALLY ANSWER ALL CARDS THAT REQUIRE AN ANSWER AND WHERE THE SENDER HAS INDICATED HE WISHES ACKNCWLEDGEMENT TO LOCATE PARTS INFORMATION IF NOUN NAME IS KNOWN I REFER TO THE ALPHABETICAL INDEX IN THIS BOOK THIS INDEX LISTS ALL PARTS IN ALPHABETICAL SEQUENCE BY NOUN NAME APPLICATION DESCRIPTION FOLLOWED BY THE GROUP NUMBER LOCATION 2 AFTER TFE CORRECT NOUN NAME IS LOCATED TURN TO THE GROUP FOR EXAMPLE SHAFT REAR AXLE GROUP 2 0170 WITH MODEL AND IDENTIFICATION INFORMATION SELECT THE PART NUMBER REQUIRED 3 IF THE SUBGROUP IS KNOWN IT IS NOT NECESSARY TO REFER TC THE ALPHABETICAL INDEX IT IS MERELY A MATTER OF FINDING THE PART ALPHABETICALLV IN THE SUBGROUPS IF NOUN NAME IS NOT KNOWN I REFER TO THE MAJOR SECTION INDEX ON THE FIRST PAGE OF THIS BOOK KEEPING IN MIND THE ASSEMBLY FOR WHICH THE PART IS REQUIRED AND DETERMINE THE MAJOR SECTION NUMBER FOR EXAMPLE IF AN AXLE SHAFT IS REQUIRED THE MAJOR SECTION IS 2 COVERING REAR AXLE IF A MAIN DRIVE GEAR IS REQUIRED THE MAJOR SECTION IS I7 COVERING TRANSMISSION 2 REFER TO THE ILLUSTRATION OF THE ASSEMBLY FOR YOUR PARTICULAR MCDEL LOCATE THE SUBGROUP NUMBER FOR PART REQUIRED ON THE ILLUSTRATION 3 TURN TO THE GROUP INDICATED AND LOCATE THE PART REQUIRED IF THE PART NUMBER IS KNOWN REFER TO THE NUMERICAL INDEX WHICH INDICATES THE GROUP IN WHICH THE PART APPEARS CANADIAN OVERSEAS PARTS CANADIAN AND OR OVERSEAS EXPORT PARTS ARE ALSO PUBLISHED IN THIS PARTS BOOK IN ORDER TO FACILITATE VEHICLES SOLD IN CANADA BR OVERSEAS WHICH MAY REQUIRE SERVICE USE OF ASSEMBLY CHARTS ASSEMBLY CHARTS HAVE BEEN INCORPORATED INTO VARIOUS SECTIONS OF THIS PARTS BOOK THESE CHARTS ARE LOCATED AT THE BEGINNING OF A MAJOR GROUP FO LOWING THE SUBGROUP INDEX ONLY THE ASSEMB Y AND ASSEMBLY COMPONENTS ARE LISTED IN THESE CAARTS LOOSE ITEMS AND ATTACHING PARTS WHICH CONNECT TO THE ASSEMBLY WILL BE FOUND TN THEIR APPROPRIATE TEXT GROUP IN ORDER TO USE THESE CHARTS YOU MUST FIRST IDENTIFY THE CORRECT ASSEMBLY NUMBER FROM THE MODEL USAGE INFORMATION FOUND IN THE ASSEMBLY TEXT GROUP OF THE PARTS BOOK THE VEHICLE BROADCAST SHEETS OR THE MAJOR COMPONENT PART NUMBER LABEL TLOCATED ON THE PASSENGER S SUN VISORT THEN TURN TO THE APPROPRIATE CHART AND LOCATE YOUR ASSEMBLY NUMBER WHICH WILL BE LISTED AT THE TOP OF EACH CHART IN NUMERICAL SEQUENCE COMPONENT PARTS WITHIN THE ASSEMBLY WILL BE FOUND IN A VERTICAL LIST JNDER THE ASSEMBLY NUMBER IDBI GENERAL MOTORS SERVICE PARTS OPERATIONS M E SB 3