Hi guys-
I believe that I want to set my engine/tranny combo into my new chassis,
such that the bottom of the transmission is level. The idea is to stop the
transmission pan leak problems that I have now... which are being caused by
the somewhat sub-optimal (nose down) position of the motor I can thank my PO
for. It's not the bottom of the pan that I care about, but rather the seal
surface between the pan and the transmission housing; which if I recall
correctly, is pretty close to parallel with bottom of the pan anyway.
If I am successful at this, I'm guessing that my tailshaft will also be
horizontal. I need to take a first stab at my rear-end pinion angle, and I
think I want it to be zero... that is, parallel with the ground (maybe
that's called 90 degrees), because that's what I think I want to shoot for
with the motor. I don't expect, or want them to line up, but I if I read
all the articles correctly, getting these two parallel is what I should be
shooting for.
So: on a TH350, is the tail-shaft parallel with the bottom (pan surface) of
the housing? Or is the housing setup such that the tailshaft is pointed
down somewhat (~3 degrees?) when the pan surface is level? It seems that
most (stock) motor installations are a little bit tail-down... and I
wouldn't be too surprised if GM accounted for this by angling the
pan-mounting surface just a bit. Maybe I'm just over-estimating them ;-)
Lastly, I have, and (for now) plan to keep a rear transmission cross-member
from a ~mid '70s Camaro. The rubber mount that goes between this
cross-member and the tranny is part of my problem: it is thick and raises
the rear of the tranny more than I'd like. Does anybody know of a thinner
(than the stock Camaro) rubber mount that would mate the TH350 with this
cross-member?
Thanks-
Ryan.
'55 2nd
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