GM's 3860005 Clutch Release Fork

General Motors Part # 3860005 Clutch Release Fork

The "005" Clutch Release Fork was used on
1965,1966,1967,1968,1969, and 1970 full size
(Passenger car) Chevrolets.

386005 Fork
This fork was used on Chevy Caprice, Impala,Belair
and Biscayne manual shift cars. It measures 10 3/8"
from release bearing end to center of push rod pocket.

Side view
One of the unique features is it being flat with no
arc or offset between the pivot points.
There is a hole for return spring on upper rail.

005 Fork
In this view you see the unique shape of this lever.
It also has the lower push rod pocket offset upward
(toward the floor boards).

Retaining Spring
The bearing retainer spring is unique to this lever.
There are tabs that wrap around the end of the fork,
to limit movement.
Note: Most used forks have one or both of these tabs missing

Applications per the Thru 1975 Chevrolet parts catalog (April 1983)*

70        Pass.(454)
66-69 All(427)
65       All(409)
70       Pass.(400)
65-69 Pass.(396)
69-70 Pass.(350)
65-69 Pass(327)
68       Pass.(307)
65-67 Pass.(283)
65-70 Pass.(6cyl.)

* This catalog is very confusing. All = all cars with that engine available and all vehicles covered by this catalog. Example #1 : the 409 cubic inch engine was only available in Passenger cars, so the parts book lists All (409).
Example #2 : Corvette, Truck and few vehicles before 1965 and no vehicles after 1975 are listed. Example #3 : This catalog doesn't list parts for COPO, Yenko etc., so All(427) means all Passenger cars with 427 cid engines.

Applications per the Thru 1965 Chevrolet parts catalog
65 Pass.

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!