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.
