#3790556 (1 13/16" O.L.)
General Motors Part Number 3790556 Clutch Fork Ball Stud
The G. M. part # 3790556 is the long style Clutch
fork ball stud.It is screwed into the bellhousings
with 11/16"-20 threads, then the clutch fork is
attached to it. Below you will find Pictures,
measurements and applications I have found in
The "556" stud is approximately 1 13/16" in
overall length. Making it 5/16" longer than the
It is about 1 1/8" from threads to tip.
Here you can also see the locktite applied to the
It accepts a 3/8 Allen wrench for tightening.
Some new old stock parts come wrapped in a plastic
protector inside a bag.
0.796 STUD, Clutch Fork
62-67 Chevy II (Chevy Parts Books)
65-70 Pass. (Chevy Parts Books)
82-88 Y (5.7-8) (Chevy Parts Books)
Summary: This was used on 1962-67 Chevy II's, 1965-70 Fullsized Chevrolets and 1984-88 Corvettes. These models used a very straight and flat clutch release fork.
Most parts that I describe and picture have identification on or with them, others I can identify from other sources and deduction (educated guess).
Factory correct applications are your responsibility. GM made part and part # changes with no rhyme but a reason (no production interruptions at any cost).
Applications 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!