lndiw Pditg are asSl l i 1 21 lfmup NUlY1b i UW fifSf Numerial ide nt it yiiig the m Uilll it is iiatgd with and fCll1OW11 lm Decrvgral is thf SUb Gl OL1p Number under which y Parts of diiiiiig mime and t urircti orri i 115166 For mstancez Group 0 033 iiididatss th it is an En psig 33 is the l1 I2lt10H where all Part Numbers of Cylinder Blocks now being Servil may be found For Cvcmdnddi List Price is rowrn where the Part is listed An exception to this occurs when 3 pains MSO iisidd gisewiierenan in its original or prime Group and in such listings the prirne gm is indicated in pai eheses in place of Price This procedure is necessary as a part can ligvg bl mg iddmifyiiig j ig u Number for ordering or bin location For example under Group Nrmger 3 751 Part Numb 3 12146 is listed as Carburetor Choke Valve Screw and in 1tS price mmm is ghgwn 3 7r3Ti v ln i ch refers to the prime Group of that part The Price IWW be obtiirred by rererrini tohat Group or to the Dealer Parts and Accessories Price Schedule Whei using the dimensions nd other data shown in the Description Column the parts manager should be guided by thrfollowingz 1 length overa1l re e 3r50 the total length of a part measured over the longest di mension An irregular raped piece is measured over the longest dimension regardless of contours and bends 2 dev length refers i the total length of a part such as a tail pipe or gas pipe measured as though re part were straightened out This measurement can be taken On formed pipes lbjjy ping a string to follow the contours of the pipe and then measur ing the length of strin used 3 1 D refers to insire rliameter D refers to outside diameter O S refers to 0V Y 1Z U S refers to undersize To loca1 e the listing of r Part determine the model vehicle and refer to the Book under tht GYGIUD Number identifying 1 which may be determined by using any of the following three methods 1 Consult Alphabetical lnde x at front of book which lists Parts by noun and descriptive names and refers to tlie exact Group Number where all Parts of similar kind may be found More than one Group Number will be given where the same kind of part is shown in both l assenger and Commercial Body sections lf Name of desired Part is not readily found in the Index a correlated Part Name will suggest approximate location 2 Consult Illustrations in this publication on which Group Numbers Part Numbers and Noun Name are sliown which wil l refer to the Part or Assembly wanted On Illustrations where both left and right part numbers are listed the first number will always designate left hand side 3 Consult Dealer Parts and Accessories Price Schedule if a Part Number is known and use its Group Number to locate a similar Part or be directed to the approximate location of correlated Parts The column headed No Used indicates the number of pieces reeiuired The term A R means As Required if Body is not of Chevrolet manufacture puree primirs direct wyhjhe manufacturer whose name aprpars on the Plate The following sy mhols refer to parts not stocked at Chevrolet Warehouses l Parts or accessories stocked at General Motors Truck Divison Warehouses 2 Parts or accessories supplied by Detroit Diesel Engine Distributors 4 1969 r ur2vRc i er moron Division oeniaaar MOTORS oRPORAT10r 1 REV 3 l 69 13