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Unread 04-27-2010, 06:01 PM   #1
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Join Date: Apr 2010
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difference between t and m engine code

I have a 1989 Wrangler and i just put a new cam in it... i'm looking for the torque specs and i have a chiltons manual, with no answer for my engine code (t) theres only (m) in the book what is the diffference?

metsman1989 is offline   Reply With Quote Quick reply to this message
Unread 04-27-2010, 06:41 PM   #2
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1992 YJ Wrangler 
Join Date: Oct 2006
Location: , Massachusetts
Posts: 2,751
The 1989 Wrangler came with two different trannys behind the 4.2.
The "M" code signifies that it has the Peugeot BA/10 5 speed.
The "T" code signifies that it has the (better) Asin AX-15 5 speed tranny.

The 4.2 engine is the same regardless of the T or M code.
kloppk is offline   Reply With Quote Quick reply to this message

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