CHART INFORMATION PAGES CHART DESESIIGN The charts are designed to list all items which are details of the l Iajor Assemblies listed numerically at the top cl the chart pages l lajor Groups may contain more than one chart Please note each chart has a description header which identifies Ilhe major assemblies listed and the text group they are found in exannple Wheels Front Drum Hub Wheel 6 307 The text group lists l Iajor Assemblies with applicable description model and year usage Service notes are proviziled to guide proper location of service parts Parts used in conjunction with ll Iajor Assemblies and are not listed as details are located in the appropriate text group I lang on or loose lterns TO LOCATE FIAFIITEB lvlajor Assemblies must be ltnown Please refer to major assembly identification aids vehicle serial number plate truck broadcast sheet service parts identification label major component part number labell lt lajor Assembly parts book group l i lajor Assembly details are listed alphabetically in a vertical chart form by line number Each line has one description only and includes GMT and WDDGIVI group numbers for reference General ll lotors uses twc different grouping systems for truck parts boolks The Gl IT system is used for all heavy duty mod al parts books and the VVDDGIVI system for the medium duty model books Please reter to the General information Pages for detailed parts group usage information I NOUN NAME IS NIZZIT KNOWN Prefer to the Illustration iCZ atalc gl keeping in mind the Major Group number and described area Locate the appropriate illdstration and deterimine tlhe part required on the illustration The noun name and grotip inuirnber is listed in the legend Please refer to the lllustration Catalog Introduction pages fdr additional user iritormation IIE NOUN NAME IS K lsIO NN Pieter to the Alphabetical Index as a guide to ideintily group number Please note lf the group number is not found in l lhe text the group ls charted Scan down the chart lines and locate noun name using group number as a guide Description andlor usage is also provided to assist identification Locate the l lajor Assembly part number at the top ot the chart and scan down to line number of the parts nouin name ln this lbox you will find the quantity required part number and vendor number or note 2 1 CHART