63 Chevy Impala Bellhousing and Related Parts
1963-64 Chevrolet Passenger Car Bellhousing Assembly
Most of the part numbers listed below are for parts
not listed in Chevrolet assembly manuals, these
parts came installed on the engines from the engine
assembly plants. The numbers listed below are gleaned
from replacement parts catalogs. Clutch forks are one
of these parts. Clutch forks are more specific to the
clutch release linkage, than the bellhousing. So I may
list them in the linkage and bellhousing sections.
153 Tooth Flywheel (10.4" or 10 1/2" Clutch)
3788422
0.679 COVER Clutch housing
63 Pass. S.T. with 230, 283,327 engine
64 Pass. S.T. with 283 and 327 engine
64 Pass. S.T. with 230 engine exc. T.O.P./city service
History:
3788422 use 354497 1/76
3788419 (Ident. No.3788421)
0.683 HOUSING ASSEMBLY, Clutch
63 Pass. S.T. (exc. 409)
This is a 153 tooth flywheel cover with 4 1/8"
transmission hole.
3840381 (Stamped 3840383)
0.683 HOUSING ASSEMBLY, Clutch
64 Pass. S.T. with 283 and 327 engine
64 Pass. S.T. with 230 engine - exc. taxi or police/city service equip
This is a 153 tooth flywheel housing with 4 5/8"
transmission hole.
168 Tooth Flywheel (11" Clutch)
37856644 (stamped 3779533)
0.683 HOUSING ASSEMBLY, Clutch
63 Pass. (409)
64 Pass. S.T. with 230 engine -
with taxi or police/city service equip
3795587
0.679 EXTENSION, Clutch housing
(w/one indented trough on surface)
61-63 Pass. (409)
64 Taxi (230)
3704923
0.679 UNDERPAN, Clutch (15 1/2" O.L.) (Note 2)
63 Pass. (409)
64 Taxi (230)(2nd design)
Note 2: Trim excess metal to fit as necessary.
3781385
0.797 BOOT ASSEMBLY, Clutch fork
63 Pass. (409) (Assembly Manual)
3843941
0.683 HOUSING ASSEMBLY, Clutch
64 Pass. S.T. with 409 engine
This is a picture of casting # 3843942.
History:
3843941 use 3866982 07-65
3843943
0.679 COVER, Clutch housing
64 Pass. S.T. with 409 engine
3820875 (black rubber)
0.797 BOOT ASSEMBLY, Clutch fork
63 Pass. (Assembly Manual)
3844208
0.797 BOOT ASSEMBLY, Clutch fork
64 Pass. S.T. 8cyl.
History:
3844208 use 3841738 10-65
3841738 Replaced 3781385 07-65
3841738 use 3993851 08-71
3993851 use 14007355 11-90
3729000
0.796 STUD, Clutch fork ball
63-64 Pass. S.T.
909422 (1 7/8" long)
0.799 BEARING, Clutch release
63-64 Pass. S.T. with 230, 283 and 327 engines
900018 (1 9/32 long)
0.799 BEARING, Clutch release
64 Pass. S.T. with 327 and 409 engines
3813729
0.795 FORK UNIT, Clutch
63 Pass. (409) (Shown in Assembly Manual)
3820008
0.795 FORK UNIT, Clutch
63 Pass. S.T.
64 Pass. with 283, 327 and 409 engine
3737456
0.796 SPRING, Clutch fork retaining
63-64 Pass.
3736035
0.683 BOLT, Clutch housing attach. (3/8"-16 x 1 5/16")
63-64 Pass.
3733130
8.900 BOLT, Clutch housing attach. (3/8"-16 x 2 1/4")
120394
8.929 WASHER,
0.683 BOLT, Clutch housing attach. (3/8"-16 x 1 5/16")
63-64 Pass.
3733130
8.900 BOLT, Clutch housing attach. (3/8"-16 x 2 1/4")
120394
8.929 WASHER,
Disclaimer:
Factory correct applications are your responsibility. GM made part and part # changes with no rhyme but a reason (no production interruptions at any cost).
Application charts are for replacement parts that were available at the time of parts book printing.
My observations come from the parts I have in my collection or other reliable sources your parts may differ.
If Factory correctness is your goal, do more research, join car clubs,
forums and buy an assembly manual if one is available for your Project Car (you wont be sorry).
This is a fun and interesting part of the hobby!
