i POWERGLIDE TRANSMISSION e I I i 4 256 GOVERNOR ASSY BODY ASSY GASKET GEAR UNIT PIN RING SCREW SHAFT SPRING VALVE WASHER WEIGHT ASSY Transmission Con t 6 63 71 All w P G 3856672 4 i SCREW governor body to trans governor hub screw and lock washer 20 x 3 1 062 A 64 71 All w P G 2nd design 3850517 1 SHAFT governor connector 63 66 All w P G 3815089 2 SPRING governor damping 64 71 All w P G 2nd design 3850516 1 VALVE governor i 67 71 All w P G 3905432 1 WASHER governor damping i 64 65 All w P G exc 327 H Per 409 2nd design i I 66 70 Ser 10 20 G 10 20 w P G 3850512 1 WEIGHT ASSY governor I 4 265 GASKET SCREEN ASSY Transmission Low and Drive Valve I 6 POWERGLIDE I I 60 61 All exc 327 3745127 1 low and drive valve body I 63 71 All 3846834 1 SCREEN ASSY trans throttle valve feed 4 278 LEVER ASSY SEAL WASHER Transmission Throttle Valve I 63 71 All w P G 3 789138 1 inner 63 69 All w P G 8526398 1 SEAL lever shaft O ring l D 63 69 All w P G 3978774 1 WASHER throttle valve control shaft I 4 317 EXTENSION ASSY Transmission Rear Main Bearing I 63 Ser 10 20 w P G Q 3793803 1 w bushing 64 70 G 10 20 w P G 3887007 1 w bushing 67 71 All 3987986 1 w bushing 4 318 SEAL ASSY Transmission Rear Bearing Retainer A c 55 70 All 1 243402 1 extension of oil 7 4 329 ADAPTER Speedometer NOTE 1 Below adapters used as required in combination withspeedometer gears to correct odometer 4 reading for various tire sizes transmission and rear axle gear ratio combinations See group 4 337 NOTE For detailed application use speedometer gear charts 57 58 4 Ton exc D D 4 1583876 1 7 00 x 17 6 8 ply tires 63 67 Ser 10 3 07 axle ratio 17 14 w 6 50 16 7 00 15 or 7 Y V 1 7 5 8 00 x 16 5 8 15 x 15 0 R 6 ply V tires i 68 For application refer to chart in W V l group 4 337 1589247 1 68 72 For application refer to chart in i I group 4 337 3925669 1 ADAPTER ASSY stamped 9444 W 68 72 For application refer to chart in group 4 337 3925671 1 ADAPTER ASSY stamped 1 0500 U 68 Forlapplication refer to chart in i l 4 337 group 6451928 1 ADAPTER ASSY I 68 For application refer to chart in i K 4 337 group 1 585657 1 ADAPTER ASSY A a 68 72 For application refer to chart in I 4 337 group 1565452 1 ADAPTER ASSY stamped 1565452 68 For application refer to chart in I 4 337 group 1583624 1 ADAPTER ASSY stamped 6454327 69 72 For application refer to chart in 4 337 group 3950348 1 ADAPTER ASSY stamped 1 2020 X 69 72 For application refer to chart in 4 337 group 3950350 1 ADAPTER ASSY stamped 1 3000 J 69 72 For application refer to chart in 4 337 group 3950352 1 ADAPTER ASSY stamped 8241 C 69 72 For application refer to chart in i 4 337 group 3950354 1 V ADAPTER ASSY stamped 9743 Y 38 66 For models and comb see l V Group 4 337 L ADAPTER UNIT ratio 17 16 stamped i 156387 1 e 68 For application refer to chart in group 4 337 I 1565812 A R Note 1 38 64 For models and comb see 1 Group 4 337 ADAPTER UNIT ratio 16 17 stamped I i I 1564409 68 For application refer to chart in V ij group 4 337 1565814 A R Note 1 68 For application refer to chart in V 4 337 g roup 1584275 1 ADAPTER UNIT i t GM PAR TS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL 4 256 4 329 in 4 118 REV 5 79