CHASSIS ELECTRICAL SYSTEM 2 480 HARNESS ASSY CIRCUIT CONNECTOR EXTENSION SOCKET WIRE Chassis Wiring segmented I NOTE 2 When using on 1950 thru 1952 models it may be necessary to splice additional No 12 gauge f A wire to ammeter connection andA additional No 18 gauge wire to horn button connection 55 62 All A 2980868 1 AC gen jumper wire cover 51 O L 57 59 Ser 3 A 60 62 D D exc 102 W B AC gen l 2970005 1 cover 70 O L Note 3 NOTE 3 When using on 1957 models it may be necessary to splice 1 wire from connector to voltage I regulator and to replace terminal and connector on horn wire A A I 61 Ser 10 thru 30 w dir sig exc D D FFC P G 2976984 1 cover 1 18 O L w junction block I 62 Ser 1 0 thru 30 exc FFC D D 2980916 1 cover 67 R O L w junction block tagged 9016 63 Ser 10 thru 30 w tech oil press emmeter temp gauge i exc FFC D D 2983604 1 cover 63 0 L w junction block 68 72 Pick Up 6297115 1 camper wiring 2 575 70 Ser 10 thru 30 w aux bett A i 71 72 Ser 10 thru 30 Conv 4 WD w aux batt 6299744 1 camper eux bett 2 342 I INSTRUMENT PANEL A NOTE 1 It may be necessary to cut the neutral safety switch connector off and strip splice solder and tape wires for insulation On models prior to 1964 transfer light switch connector from old harness NOTE 2 When using 1964 harness in place of 1963 harness transfer the 1 963 lightswitch connector from 1963 harness NOTE 3 When using 6295585 in place of 6291 747 the harness park and directional signal lamp connector must be rework also park lamp will stay on when the head lamp is on NOTE 4 When using 6295585 on 1967 1968 models use A25 amp fuse for A C circuit in the 30 amp junction block designation 4 A A 64 65 Ser 10 thru 30 tech A A A w gauges exc D D FFC 2986741 1 5 63 66 Ser 10 thru 30 exc tech gauges D D FFC 298551 5 1 instrument panel Note I 64 66 Ser 10 thru 30 exc D D FFC A A tech gauges 2985500 1 instrument panel cluster 64 66 G 10 w heater 6290000 1 A 66 Ser 10 thru 30 w 3 Spd exc A A AA FFC D D tech gauges 6289491 1 67 70 Ser 10 thru 30 Cab Blazer I exc 4 Spd gauges tech A A 71 Ser 10 thru 30 Conv 4 WD Blazer exc 4 Spd Tech I gauges 72 Ser 10 thru 30 Conv 4 WD B r Blazer exc 4 Spd Tech gauges 8904744 1 I 67 69 Ser 10 20 Panel Sub C A A w gauges Tech exc 4 V Spd 3938489 1 A A 67 69 Ser 10 20 Sgl Unit exc 4 A Spd tech gauges 3938472 1 Note 1 l 67 70 G 1 2 exc gauges 6295585 1 Note 3 Note 4 J 68 69 Ser 20 30 D D w A T exc Diesel C 70 Ser 10 thru 30 D D w A T exc Diesel 6299788 1 A 68 Ser 20 30 3 53 68 69 Ser 20 30 D D exc A T 6297119 A 1 A A 69 70 G 10 20 w gauges 6295586 1 71 72 G 10 thru 30 exc gauges 8904863 1 71 72 Ser 10 thru 30 D D exc A T M H C 8904607 1 71 72 Ser 10 thru 30 D D w A T exc M H C A 8904608 1 A 67 70 Ser 10 thru 30 Ceb Blazer w 4 Spd exc Tech gauges l 71 72 Ser 10 thru 30 Conv 4 WD A Blazer w 4 Spd exc Tech I A gauges A 8904743 1 71 72 G 10 thru 30 w gauges 8904864 1 67 72 Ser 10 thru 30 Conv 4 WD Blazer w 4 Spd Tach w gauges 8904746 1 A GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL REV 5 79 2 37 A 2 480 2 480 0