difference between t and m engine code - JeepForum.com

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post #1 of 2 Old 04-27-2010, 05:01 PM Thread Starter
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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?

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post #2 of 2 Old 04-27-2010, 05:41 PM
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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.
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