3 CHASSIS ELECTRICAL SYSTEM 2 1 13 BOOT PLUNGER Starting Motor Drive Shift Con t 65 72 All Blazer exc Diesel 1941113 1 PLUNGER w link 3 v 67 70 Ser 20 30 3 53 t 1942250 1 PLUNGER w 1 1 13183 3202 2 170 COIL Ignition 47 54 All 3 I A 1 55 Comm 6 volt 1115380 1 normal weather operation emboss 380 6 V 1 55 67 All w 12 volt exc T Ign 66 72 All Blazer 1115202 1 w 1 8 Ohm wire stamped 202 12 V 67 72 All Blazer 1115238 1 w 1 3 Ohm wire stamped 238 BR 2 171 WIRE ASSY Ignition Coil 3 66 69 G 10 20 6 cyl I N 66 69 Ser 10 D D 69 Ser 20 30 D D w A l R 250 2960115 1 to distributor high tension 15 tt O L 2 173 RESISTOR Ignition Coil 3 55 59 Sei 3 3 60 66 D D 31957154 11 primary blue stripe 1 8 ohms 2 183 BRACKET PLATE SCREW Ignition Coil Mounting 55 59 All 12 volt 6 cyl 3 3 60 62 Ser 10 thru 30 6 cyl 1909326 1 3 r 3 55 58 All 6 cyl exc dual 4BC A r 3 zaci 59 All 8 cyl 1929496 1 w Screw 63 72 All Blazer 6 cyl 1646736 1 3 63 72 All Blazer 8 cyl 1970344 1 w 1115293 65 70 Ser 10 thru 30 w Air Cond exc D D FFC 8 cyl 69 70 Blazer w C A C 6 cyl 71 72 Ser 10 thru 30 Blazer 6 cyl exc D D Q 3843253 1 PLATE mounting 57 All exc dual 4BC 56 60 All 3 A 61 66 All exc 3 2BC 1945901 1 SCREW bracket No 10 32 x 1 2 187 KEY Ignition Door Compartment Trunk Gas Tank Cap Tire s Locks i NOTE 1 This Key is used for 1st design G Truck when J is stamped on existing key NOTE 2 This Key is used for 1st design G Truck when K is stamped on existing key NOTE 3 This Key is used for 2nd design G Truck when A is stamped on existing key 3 NOTE 4 This Key isused for 2nd design G Truck when B is stamped on existing key B 38 66 All 3694624 A R octagon hd w knockout plug ignition i door and tire locks series 8000 9499 67 All 7033454 A R octagon hd ignition and door lock 67 All 3 Q 7033455 A R round head instrument panel 3 66 All 7034660 A R hexagon hd uncoded 66 All 7034702 A R round hd 69 All 7025019 A R oval hd uncoded 3 69 3AII i 7025014 A R square hd uncoded 70 All Blazer I A 71 G 10 thru 30 1st design 7025268 1 oval hd uncoded Note 2 70 All Blazer I 3 i n 71 G 10 thru 30 lst design 7025282 1 square hd uncoded Note 1 71 Ser 10 thru 30 Blazer 71 G 10 thru 30 2n d design 7027275 A R sq hd uncoded B 320588 Note 3 71 Ser 10 thru 30 Blazer 3 71 G 10 thru 30 2nd design 7027281 A R oval hd uncoded B S 320589 Note 4 72 All Blazer 7024229 2 sq head B S 320652 2 188 CYLINDER ASSY SWITCH ASSY Ignition Switch NOTE See group 10 553 for cylinder tumblers 38 46 All 49 55 Comm 1st Ser 55 59 Ser 3 2nd Ser A 3 62 66 Ser 10 thru 30 65 66 G 10 3 1456180 1 less tumblers spring and retainer uncoded 3 47 48 All exc EJ EK 60 61 All r 64 G 10 3772065 1 less keys uncoded 68 All 72 All Blazer 695450 1 uncoded B S 603840 67 All B I 69 Ser 10 thru 30 1 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL REV 5 79 2 7 2 1 13 2 1 88