RE: JPOR: T18?

[Chuck Pedretti <chuckp@xxxxxxxxxxx>]

T-18's are common in fullsize jeeps.  The J trucks and SJ cherokee and
wagoneers had them.  It's usually cheaper to buy a complete J truck or SJ
and take the parts you want.  A typical combination is a 360 V8, t-18, and
d20 tcase.

Heres a snip from www.jeeptech.com

The T-18 was optional on CJs from 1971-1979. The T-18A version used from
1977-1979 is the best transmission ever put in a CJ by the factory since it
features a granny low first gear(6:32:1.) Earlier T-18s have the same great
strength, but a 4.03:1 first. The T-98 is the predecessor to the T-18 that
was an option for CJs from 1955-1970.

Other Jeep trucks also had the T-98 as an option from 1955-1970, the close
ratio T-18 optional from 1971-1975, and the wide ratio T-18 from 1976-1979.
After 1979, the wide ratio T-18 was only avilable as an option in the J-20
pickup truck from 1980-1981. This version of the T-18 has the round New
Process bolt pattern and 23 spline output, but the adapter is long for a
short wheel base Jeep. Earlier T-18s and T-98s used the "Texas" bolt pattern
and 6 spline output. The truck version of the T-18 uses a long input shaft
compared to the T-98 or CJ T-18s.

Transmission  1st  2nd  3rd  4th  5th  Rev  
T-98  6.40  3.09  1.69  1.00   N/A  
T-18  4.02  2.41  1.41  1.00   4.73  
T-18A  6.32  3.09  1.69  1.00   7.44  


Chuck Pedretti
Senior Consultant
Magenic Technologies

http://www.oldjeep.com


-----Original Message-----
From: Paul W. [mailto:a4xnut@yahoo.com]
Sent: Saturday, April 07, 2001 11:14 AM
To: jeepoffroad@4x4wire.com
Subject: RE: JPOR: T18?


****************Please Remember to snip your replies***************
Chuck Pedretti <chuckp@magenic.com> wrote:
> >It is.  And I don't think that is pricey.  
> 
> Around here, $600 will buy you the entire grand Wagoneer with money left
> over to rebuild the tranny ;)

But I've never seen a Grand Wagoneer with a T-18 in it.
(That is still the thread we're following isn't it? ;)

I've seen a few SJ Cherokees and J-trucks with them and some old SJ
Wagoneers
with 3-speeds and T-98A's. Saw a 258 powered GW once with a T-5 in it... and
I
think that's the only post '74 SJ Wagoneer I had ever seen that wasn't an
auto.


Paul

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