COOLANT GRILLE OIL SYSTEM I r 1 745 CONNECTOR OIL FILLER TUBE ASSY VENTILATOR and PARTS Crankcese C n t I Z 71 72 Ser 20 30 Conv 307 350 n V I 71 72 Ser 10 20 4 WD 307 350 V 71 72 Ser 10 Conv Cab w 8 8 307 350 3982962 li TUBE ASSY oil filler G i 71 72 Ser 30 D D w M H C 346289 1 TUBE ASSY upper oil filler 71 72 Ser 30 D D w M H C exc A 400 3993299 1 TUBE ASSY lower oil filler 71 Ser 30 w M H C 400 3993377 1 TUBE ASSY ower oil filler 8 A 52 53 All w pos vent exc D D 54 58 All w pos vent 6 cyl exc I 59 61 Ser 3 w pos vent 6 cyl 81 62 All w closed vent 6 cyl I A 63 4 WD w closed vent 6 cyl I I lst Ser 3699844 1 VENTILATOR 55 87 All 26 5 283 327 3728502 1 VENTILATOR mtd inside of engine 5 lg i 50 55 Comm 235 lst Ser exc D D l 55 56 Ser 3 235 2nd Ser exc D V D V 57 Ser 3 exc D D 3740882 1 VENTIALTOR ASSY crimped top T 58 59 Ser 3 exc pos vent closed y i vent D D 60 62 Ser 10 thru 30 6 cyl exc pos vent closed vent D D 83 4 WD 6 cyl lst Ser exc A A pos vent closed vent 3743070 1 VENTILATOR ASSY 55 Ser 3 w 2BC 56 59 Ser 3 w 2BC y 60 Ser 10 thru 30 283 6419926 1 VENTILATOR KIT closed adapter KV J 1003 use w 5646969 49 81 All 6 cyl 7 62 D D y 62 Q All w positive vent 6 cyl exc 0 D I I 63 4 WD w pos vent 1st Ser 5647228 1 VALVE crankcase ventilator 56 D D 8 cyl I I 61 All w closed vent 8 cyl 62 All w closed vent 283 6421785 1 VALVE ventilator metering Q I 63 64 All 8 cyl 65 66 Ser 10 thru 30 283 327 exc closed vent H D A Cl A l R 67 Ser 10 thru 30 G 10 20 8 I y cyl exc closed pos vent 6421934 1 VALVE ASSY vent CV 590 63 64 Ser 10 thru 30 292 exc pos vent H D A CI r 65 68 Ser 10 thru 30 292 exc A l R 7 67 Ser 10 thru 30 292 Q 8487503 1 VALVE ASSY vent CV 768C V 63 65 Ser 10 D D 4 cyl A 64 65 G 10 4 cyl exc closed vent C 6422038 1 VALVE ASSY vent CV 607 C 63 All 230 e I 64 y All 230 exc closed pos vent H D A CI I 64 G10 6 cyl exc closed vent 65 66 All exc 292 8 cyl A I R l y 67 68 Ser 10 thru 30 250 exc D D y 67 G 10 20 D D 6 cyl exc A l R 64 21971 1 VALVE ASSY vent CV 609C 66 Ser 10 w A l R 292 68 All 8 cyl I I 69 70 Ser 10 thru 30 G 10 20 8 V vl l 8 7 69 70 Ser 10 thru 30 292 71 72 All Blazer 8 cyl 6423695 1 VALVE ASSY vent CV 736 C Note 2 68 All w A l R 194 I y 67 G 10 20 w A I R 6 cyl exc Deluxe V I 71 72 All Blazer 250 6422717 1 VALVE ASSY vent CV 722C 66 Ser 10 D D G 10 w A l R X 230 66 Ser 10 thru 30 w A I R 250 y T 87 68 Ser 10 D D G 10 20 Deluxe V A w A I R 6 cyl i GM PARTS DlV lSl0N GENERAL MOTORS CORPORATION CHEVFIOLET 72TL 1 745 1 745 I 1 4e REV 5 79