CHASSIS ELECTRICAL SYSTEM 2 187 KEY Ignition Con t 70 All 71 72 Ser 40 7025288A R oval hd uncoded 70 All 71 72 Ser 40 7025282 A R square hd uncoded 7 71 72 Ser 50 60 7027275 A R sq head uncoded 71 72 Ser 50 60 7027281 A R oval head uncoded J 2 188 CYLINDER ASSY SWITCH ASSY Ignition NOTE See Group 10 553 for Tumbler Unit Spring Unit and Retainer used with lock cylinders 38 46 All 49 55 Util 1st Ser 55 59 All 62 66 All 1458180 1 less tumblers spring and retainer uncoded 60 61 All 3772085 1 less keys uncoded 67 All A 71 72 All 695450 1 less tumblers spring and retainer uncoded 68 Ser 40 thru 60 exc SBC 72 Tilt 695450 1 uncoded 69 All exc SBC 695450 1 uncoded 49 53 Util 54 55 FFC SBC 6 volt 1116551 1 SWITCH ASSY less cyl and keys 55 56 All w H T 6 cyl 55 56 All 8 cyl 1116512 1 SWITCH ASSY less cylinder and keys 55 59 All 1116522 1 SWITCH ASSY less cyl and keys 57 59 All w H T 6 cyl 57 59 All 8 cyl 57 59 Ser 6 w P T 6 cyl 1116537 1 SWITCH ASSY less cyl and keys stamped 537 60 61 All 1116569 1 SWITCH ASSY less cyl and keys 62 Ser 40 thru 80 exc Tilt 62 Tilt Diesel I 63 67 All exc D351 D DH478 65 66 Tilt D351 65 66 Ser 60 TDM D DH478 V 67 Tilt exc Diesel 67 Ser 50 60 4 53 exc Tilt 1116626 1 SWITCH ASSY less cyl and keys 65 66 All D351 exc Tilt 65 66 All D DH478 exc TDM 65 Ser 80 TDM D DH478 1116658 I SWITCH ASSY less cyl and keys 69 Diesel T 67 72 All exc Diesel 1116712 1 SWITCH ASSY ign and start 2 195 BUZZER ASSY Ignition Switch Warning 62 Diesel 1116882 1 start warning 4 874 63 67 All 3 53 4 53 6V 53 65 68 Ser 50 60 Tilt D351 D DH478 65 67 Ser 60 TDM D DH478 T 69 Ser 50 Diesel 1116881 1 start warning 70 72 T 65 Air Brakes w Engine Alarm System 1 116914 1 eng alarm 2 198 NUT BEZEL PLATE SPACER Ignition Lock 64 66 All exc Diesel Tilt 65 66 Ser 50 60 Diesel exc D351 D DH478 65 66 Ser 60 TDM D DH478 65 Ser 80 LCF 6V 53 66 Ser 40 thru 60 exc Tilt 66 Ser 50 60 Diesel exc Tilt A 67 70 Ser 40 D D 67 69 Ser 40 thru 60 Tilt ign and start switch mounting 66 Ser 50 60 Diesel 3902185 1 ign switch mounting 68 72 Ser 40 thru 60 FFC 3908807 1 ign and starting switch J 68 72 Ser 40 thru 60 exc FFC 3918893 1 BEZEL ign and start switch 62 68 Tilt 3799568 1 PLATE ign and start switch control 69 72 Ser 40 thru 60 exc Tilt 3952228 1 PLATE ign and start switch 67 Ser 40 thru 60 exc D D Tilt Diesel 68 72 Ser 40 thru 60 FFC SPACER ign and start switch 67 Ser 50 60 Diesel exc Tilt 3905271 1 start switch 68 72 Ser 40 thru 60 exc FFC SPACER ign and start switch 68 69 Ser 50 60 Diesel exc Tilt 3918894 1 start switch 6 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TM 2 187 2 198 2 10 REV 5 79