If I don't assume he's only talking 4 synchro, then there are other
considerations. To identify 4 vs 3 synchro - just look at the side cover.
The 4 synchro is rectangular, and the three synchro is more of a
mis-shapen trapezoid. Further on 3 synchros - the early (3 main bearing)
cars have a small input shaft for the transmission - the 5 main cars have
a larger shaft (at least 1 inch diameter, maybe more). The early 3
synchro for a 5 main engine also has no back-up light switch, where the
late 3 synchro for the 5 main engine has a back-up light switch.
Phil Bates
> I assume you are talking about early and late full synchro models. They
> had black and blue labels on them (metal plates). I do not feel like
> getting under one of my cars but I believe the early ones were black
> plate. The other way to check is top fill or side fill? I have an early
> full synch and it is a top fill.
> Carl
>
> Bill Saidel <saidel@camden.rutgers.edu> wrote:
> How do I tell whether an OD tranny (not in a car) is an early one or a
> late one(Moss terminology)?
> Bill S.
> '76B
> BMCSNJ
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