#3813729 61-63 Chevy Pass.

Pictures and descriptions are from a used fork.


Engine Side
In this picture you can see that the throwout bearing
end isn't symmetric (asymmetric).


Length
From the center of the push rod attachment holes
to the center of the throwout bearing spring is about
10 3/8".


Retaining Spring
The clutch fork retaining spring is typical of Chevy
forks from 1957 to the 80's.


Push Rod End
This used fork came with a part number 3784630
push rod pin (swivel) installed.

Anti-Rattle Spring Hole

Arch
This fork has a very sharp arch, that is close to 2".

0.795 FORK ASSY., Clutch release

61-62 Pass. (Chevy Parts Books)

63      Pass. (409) (Chevy Parts Books)

64     Taxi (230) (2nd design) (Chevy Parts Books)

62     ALL ST (Chevy Parts Books)

3813729 Replaced 3777410 05-66

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, and when possible model specific assembly manuals.
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!