#3846881 62-64 Chevy Pass (SB)
General Motors Part Number 3846881 Z Bar
Used OEM Part
Pictures and descriptions are from a used original
part.
Orientation
Tab on left goes to clutch pedal push rod. Tab on
right goes to fork push rod.
Measurements
(Most measurements were done with a measuring
tape and are therefore approximate.)
Main Pipe (overall length): 8 1/8"
Pedal Lever (pipe to tip): 3 3/8"
Pedal Lever (pipe to center of 1st hole): 2 3/8"
Pedal Lever (pipe to center of 2nd hole): 2 15/16"
Fork Lever (pipe to tip): 3 3/8"
Fork Lever (pipe to center of 1st hole): 2 3/8"
Fork Lever (pipe to center of 2nd hole): 2 15/16"
Frame End
This end uses the frame side ball stud assembly.
Engine End
This end slides over the engine side ball stud.
Reproductions
Apex
The cheaper reproductions available from
many parts stores, is not usable in my opinion.
NOS vs Repo 1
The z bar at the top is a new old stock GM part,
and is 8 1/8" long. The frame side ball stud slides
right in.
The z bar on the bottom is a reproduction part
that is carried by most parts stores, including
Chevy big car specialists, is 8 9/16" long. It will
not fit, or will be too tight, between the frame
bracket and the engine. The frame side ball stud
will not fit.
NOS vs Repo 1
The length can be shortened, and the frame side
can be honed out. But the main problem is the
"clocking" of the arms is off.
NOS vs Repo 2
The reproduction of GM part #3846881, that is
sold by 4 Speed Conversions, has the correct
length, clocking and the ball stud slides right in.
This is a classic case of you get what you pay
for.
Application
3846881
0.852 LEVER, w/shaft
62-64 Pass. (exc. 409) (Chevy Parts Books)
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!
