t l GENERAL INFORMATION ra l Complete familiarity with the information contained on these pages as well as the general layout ofthe Parts i Book will prove helpful in locating and ordering the desired parts The Book is arranged in sections as follows r Model Series Identification l Alphabetical Index l Chassis Parts Listing groups 0 000 to 9 000 inclusive Commercial Body Parts Listing groups 16 000 to 174999 inclusive Numerical Index l he Group System of listing parts is used and briefly is as follows l Main units of the vehical are identified by me Numeral preceding the Decimal i e4 I Engine 4 4 i 4 4 4 444 4 0 I Cooling and Oiling 444 4 4 l Electrical 4 44 4 44 4 4 4 4 2 i Fuel System 4 4 4 44 4 3 Some Parts may be listedrelsewhere than in its original or prime Group and in such listings the prime v Group is indicated in parentheses This procedure is necessary as a part can have but one identifying Group Number for ordering or bin ooation4 For example under Group Number 3 751 Part Number 7020926 is listed as Carburetor Choke Valve Screw and the prime Group 3 820 is shown in the description column i For convenience all pa rts added to a reprint will be indicated with a bullet following the model year This bullet wlll l k appear for one reprint only Brake application charts appear in front of group 4 589 These charts must be used to determine the correct brake l system and replacement parts l i READING TRUCK MODEL APPLICATION The Truck Models included in this publication are listed as follows I V Conventionals Forward Control G Models and Forward Control P Models Conventional Models will be indicated with a C Conventional Models with 4 wheel Drive will be indicated with a K Forward Control Step Van Models will be indicated with a P Forward Control Cab Van Chevy Van and Vandura Models will be indicated with a G For further clarification see the Truck Series Identification Charts which follow the General information Section ofthe catalog i 1919 84 TRUCK CATALOG FORMAT l The 1979 84 truck catalog format is written in a similar way to that of the passenger car catalog uaing model codes in place of body styIes4 RPO regular production options will also in most cases be called out in code wldescrlption where needed4 l Refer to the RPO Ilet for proper identification of FlPO s l WH EE LBASE When the wheelbase dimension is essential to differentiate between models a 3 digit model number will be used Example CK209 43 All CK2 w 164 5 WJB and Cab 4 d00l 4 CK109 03 All CK1 w 131 5 W B and Cab 2 door only G113 213 All G1 2 w 125 W B4 only P3l4 42 All P3 w 157 W4B e c4 M H C l G310 AllG3 w 110 W4E4on v CKl05 Blazer Jimmy only El ERAL MOTORS SERVICE PARTS OPERATIONS LT TRUOl 52A 1 3 i