250650 375 400 TURBO HYDRAMATlC 4 317 EXTENSION ASSY Transmission Rear Main Bearing Con t 72 75 Vega T H 250 347123 1 21 20 trans includes ventilator assembly 3820840 73 75 Pass w T H 375 400 w 4BC 8627407 1 44 99 75 Vega Monza w T H 350 8640021 1 19 85 EXTENSION ASSY w bushing 4 318 GASKET SEAL SLEEVE Transmission Rear Bearing Retainer 65 75 All w T H 400 8624709 1 33 trans case extension to case 65 56 Pass w T H 8625892 1 3 15 SEAL rear bearing oil 2 0 0 V 67 71 All w T H 400 72 Pass Chevelle w T H 400 72 75 Camaro w T H 400 exc 402 8616504 1 24 SEAL output shaft 0 ring 69 75 All w T H 350 1358899 1 60 SEAL extension to case 4 69 All w T H 350 3764601 1 20 SEAL O ring output shaft yoke 57 75 All w T H 400 9626009 1 3 32 SEAL ASSY ext rear oll 66 75 All 350 w T H 350 400 1243402 1 3 25 SEAL ASSY extension 69 All w T H 350 6261062 1 1 40 SLEEVE output shaft yoke seal 4 319 BUSHING BOLT Transmission Rear Main Bearing 65 66 Pass w T H 400 8619943 1 2 72 extension 67 69 All w T H 400 68 Police w T H 71 75 All w T H 400 8626901 1 2 91 trans case extension 69 75 All w T H 350 6260048 1 82 extension 1 l D x 1 0 0 75 All w T H 350 1602499 2 13 BOLT ext to case 4 329 ADAPTER ASSY ADAPTER UNIT Speedometer 68 For application refer to chart In group 4 337 6451928 1 38 64 68 For application refer to chart In group 4 337 1585657 I 30 41 68 For application refer to chart in group 4 337 1565452 1 31 84 68 For application refer to chart in group 4 337 1583624 1 26 70 69 For application refer to chart In group 4 337 3950348 1 20 05 69 For application refer to chart in group 4 337 3950350 1 20 05 69 For application refer to chart in group 4 337 3950352 1 20 05 69 For application refer to chart in group 4 337 3950354 1 20 05 65 66 For models and comb see group 4 337 ADAPTER UNIT ratio 17 16 stamped 1563871 68 For application refer to chart In group 4 337 1585812A R 29 20 Note 2 65 66 For models end comb see group 4 337 ADAPTER UNIT ratio 17 15 stamped 1563872 68 For application refer to chart In group 4 337 1565813A R 28 20 Note 2 68 For application refer to chart in group 4 337 1565814A R 30 41 ADAPTER UNIT ratio 16 17 stamped 1564409 Note 2 NOTE 2 Above adapters used es required in combination with speedometer gears to correct odometer reading for various tire sizes transmission and rear ax e gear ratio combinations See group 4 33Z 68 For application refer to chart in group 4 337 1584275 1 30 41 ADAPTER UNIT 68 For application refer to chart in group 4 337 1584277 1 30 41 ADAPTER UNIT 68 For application refer to chart in group 4 337 3925678 1 20 05 ADAPTER UNIT 4 330 KEY CUP Speedometer Adapter 62 69 All 867209 1 1 20 also included w adapters 156581 1 12 13 I4 1580273 3876 62 69 All 860167 1 l 99 CUP drive 32 x l nickel bright 4 337 GEAR Transmission speedometer Driven Gears only 65 66 Pass w 3 36 3 31 axle 7 35 x 14 65 66 Pass w 3 55 axle 7 75 x I4 8 25 x 14 7 75 x 15 8 15 x 15 r 8 55 x 14 red 21 teeth 65 66 Chevelle w 3 36 3 31 axle 6 95 7 35 x 14 66 Chevelle w 3 55 axle 7 75 x 14 I GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 4 317 4337 4 140 REV 4 77