II 1 TURBO HYDRAMATIC TRANSMISSION V I 1 4 282 SEAL Transmission Control Valve I V 66 All w T H 400 8621767 I2 I I V parking prake lock and range sel shaft 66 All w T H 8623040 1 V pawI shaft 0 ring 4 220 I 4 290 ACTUATOR ASSY BRACKET RING Transmission Parking Brake V V 66 72 All w T H 400 8624091 Ir I V V I 69 72 AII Blazer w T H 350 6260224 1 park ockV Q Q 66 67 All w T H V V V r I 68 Ser 10 20 w T H V I 71 72 All w T H 400 v 8623042 1 BRACKET I 69 72 All Blazer w T H 350 1377861 1 BRACKET park lock reaction 69 72 All Blazer w T H 350 6261347 1 VRING park lock and range selector shift t V retainer VV 4 293 ROLLER ASSY Transmission Reverse Shifter Crank V I V I 68 72 AlI w T H 400 86 25773 1 w spring manual detent 4 294 PAWL PLUG SHAFT UNIT Transmission Parking Brake V NOTE 1 When using 6261657 in pIace of 6261 153 discard present spring and install 6261528 2nd 1 design spring 1 V V I I 1 I 66 72 All w T H 400 8623037 1 1 69 72 All w T H 350 1 6261667 1 park lock 1 hole Note 1 V I 71 72 All V L 8620318 A R PLUG park lock pawl shaft ret V so 66 72 All va T H 400 8624976 1 SHAFT UNIT w plug park pawI I 69 72 All Iazer w T H 350 3977619 1 I SHAFT UNIT park shaft and plug V 4 295 SPRING Transmission Parking Brake l NOTE 1 Use with 2nd design pawl 6261657 I 66 67 All w T H V 1 I V 68 Ser 10 20 w T H V I I 69 72V All w T H 400 8623041 1 V pawl return V 69 All Blazer w T H 350 lst design V 6261145 1 lock pawl disengaging 10 coils 1 4 I I V long 69 72 All Blazer w T H 350 2Vnd 1 V design 6261528 1 lock pawl disengaging 8 coils 1 long Note 1 V 4 317 I EXTENSION ASSY WASHER Transmission Rear Main Bearing II I 66 72 Ser 10 thru 30 w T H 400 V V I V V V exc 396 400 8623213 1 trans case V 69 72 Ser 10 thru 30 w T H V400 1 396 400 V V 8626785 1 1 V I 69 72 All Blazer w T H 350 464193 1 1 V Not required in this group See 1 V I group 5 387 1456254 WASHER V 4 318 GASKET SEAL Transmission Rear Bearing Retainer r I 66 72 All w T H 400 8624709 1 trans case extension to case I 66 70 Ser V10 thru 30 w T H 400 I 71 72 Ser 10 thru 30 w T H 400 V V 1 ext 400 8625892 1 SEAL rear bearing oil 2 1 O D 68 70 Ser 10 20 w T H 400 396 I I 71 72 Ser 10 thru 30 w T H 400 V V I 400 8626009 1 SEAL trans extension rear oil 69 72 All Blazer w T H 350 1358899 1 SEAL extension to case V 66 72 All Blazer w T H 350 1243402 1 SEAL ASSY extension of oil VV V 4 319 V BUSHING Transmission Rear Main Bearing 1 I 66 69 Ser 10 thru 30 w T H exc V 1 396 V I 71 72 Ser 10 thru 30 w T H 400 I 1 exc 400 8619943 1 extension V 1 69 70 Ser 10 20 w T H 400 396 V I 71 72 Ser 10 thru 30 w T H 400 V I 1 V 400 V 1 8626901 1 trans case extension 55 72 All Blazer w T H 350 6260048 I 1 extension 1 4 329 ADAPTER Speedometer V V NOTE 1 Above adapters used as required in combination with speedometer gears to correct odometer reading for various tire sizes transmission and rear axle gear to ratio combination See Group 4 337 NOTE For detailed application use speedometer gear charts V V 68 For application refer to chart in V group 4 337 1589247 1 I V J 66 Ser 30 w T H exc D D V V I I GM PARTS DIVISION GENERAL IVIOTORS CORPORATION CHEVROLET 72TL I 1 4 282 4 329 I V 4 146 V V REV 5 79