Re: [AMC-List] AMC-List Digest, Vol 11, Issue 52

[Nick Lenarz <n9viw@xxxxxxxxx>]

Spro,
   It's also quite likely that the trans is a Tremec T-176. The 176 was
commonly used behind sixes and eights between 1976-1982, and is a very
decent medium-duty trans. I wouldn't put it behind anything larger than
a small block, particularly not for use off-road, but on-road it's a
very smooth and capable unit.
   The T-18 used in Jeeps were more commonly found in the trucks-
J-10s, 20s, and the thousands, and also in some Wagoneer and Cherokee
models. I believe most of these heavy-duty units had a 4:1 first gear,
though, not the 6.32:1 found in the unit as used in Ford and Scout
vehicles of the era. I purchased one of these for my '82 Jeep Scrambler
when the wimpy T-5 gave out AGAIN (at least the fourth time); mine came
from a 1978 Ford F250 with a dump bed. 
   I don't know if the T-176 can be functionally discerned from the
T-18 from the outside, except perhaps by the lack of a synchro on first
gear (if it has one, it's also possible it's a T-19, but that was not
offered in the Jeep) or the throw of the shifter. Either way, as you
said, it can be decoded by the VIN.

Nick

> > From: msproviero@xxxxxxxxxxx
> To: amc-list@xxxxxxxxxxxx
> Date: Fri, 22 Dec 2006 15:08:38 +0000
> Subject: Re: [AMC-List] 79 CJ7 Transmission ID  ??
> 
> A T-4 would not have been available until after 1980.  Its a T-18a
> 4-speed, which would be the wide-ratio model in a CJ, and should have
> a Dana 20 behind it.  IMHO, its the best factory configuration you
> can start with if you want a CJ for a toy.  If his 79 has the
> leftover-from-78 big discs and 11" drums, even better.
> 
> There is an unconfirmed belief that T-18's were not available from
> the factory behind 304's and were 6-cylinder transmissions only, but
> I have run into a few people that swear that they have owned their
> 304/T-18 CJ's ever since they rolled off the lot (but never provided
> me with the VIN).  A T-150 to T-18 swap can be done with 100% factory
> parts, which would make the vehicle appear that it had always been
> that way from the factory.  If he wants to know if it is the factory
> transmission, decoding the VIN will give him the answer.
> 
> Here's its page on the Novak Knowledge base site, which is a great
> reference tool for IDing transmissions.
> 
> http://www.novak-adapt.com/knowledge/t18_t19.htm
> 
> 
> Here's the main page for the Novak Transmission section:
> 
> http://www.novak-adapt.com/knowledge/transmission_gateway.htm
> 
> 
> -Spro
> 
> -------------- Original message -------------- 
> From: Arfon <Arfon@xxxxxxxxxxxxxxx> 
> 
> > Anyone want to take a shot at this? 
> > 
> > 
> > 
> > >From: "Colby McCollum" 
> > > 
> > > 
> > >I am trying to find out what model transmission i have in my 79
> cj7 it has 
> > >the 304AMC and the numbers on the top of the transmission 
> > >read13-01-097-007. I was told it was a T4 but from looking at your
> site 
> > >that doesnt appear to be the case. Could you tell me what this 
> > >transmission is. 
> > >Thanks 
> > >Colby 


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