Re: [Amc-list] 287/327 transmission (was pushrods)

["Swygert, Francis G MSgt 436 CES/CECM" <Francis.Swygert3@xxxxxxxxxxxx>]

I don't know about the Jeep trannys. IIRC the 287 should use the T-86
three speed, the 327 the T-89. The model will be cast into the side of
the trans case. The T-86 will hold up for normal driving as long as
you're not hard on it. I used a T-96 behind a 4.0L for 18 months --
though the synchro didn't last more than 2-3 weeks. The T-86 should fare
a bit better behind a 327, but won't last as long as the T-89 would due
to the added torque going through it. In those days AMC tended to
overbuild a bit instead of providing just enough as they did in later
years (such as the SR-4 behind the 258 and 304/2V in the Hornet/Concord
body). Reliability was high on their list back then. 

Andrew, you're probably aware that the aluminum B-W didn't come out
until 1962 or 63. Even the 61 American had an iron M-8 behind the 195.6
L-head! Way overkill for the engine, but I've seen a couple original 61s
with the auto. Of course after those years there would be the difference
between aluminum and iron cased models (M-8/M-1x iron and M-3x/M-4x
aluminum models).

I'm not sure if there were internal differences in the six cylinder M-8
vs. the V-8 model or not. Could have been different clutches and bands
or amount of, and even a different planetary cluster. I'd have to check,
but I don't think the TSM will show any differences. Parts book might,
but that's a lot of digging! 

Date: Sunday, April 22, 2007 10:20 AM
From: andrew hay <adh@xxxxxxxxxxxxxxxxx>

" From: Wrambler242@xxxxxxxxxxx
"
"
" Trans, yes, the 287 does use a lighter duty trans then the 327.
" I'm not sure if it will or will not hold behind a mild 327.  The
" converter is different too, IIRC,  the  327  uses  an  engine
" mounted  ring  gear  on  the  flexplate.  287  uses a ring on the
" converter and smaller flex. I hate using IIRC, but I  don't  want
" to  give  the  impression  I  am  100%  sure of this.  I've often
" wondered if the 287 converter is looser then the 327 and could be
" used with the 327 trans.

i don't -think- converters would swap.  we're talking aluminum and
iron warners here.

" For  what  you  seem to want to do I'd suggest looking hard for a
" 65-68 Vigilante Jeep Truck or wagon. It'll give you  what  you  a
" Block  and  turbo  400 if automatic, bellhousing if standard. I'm
" not real sure of it's trans pattern for the bell though.

3sp were probably side-loader t85/t89 very similar to amc's, but 4sp
would be t18 with a -very- different wide bolt pattern.  and jeep
probably made their own bells, and they're probably bigger than amc's.

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