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Unread 05-23-2013, 10:12 PM   #1
eagsc7
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1994 ZJ 
 
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Location: Sweetwater Cyt, WY
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Tranny Dying... Now what?

My Transmission is getting ready to die. It's a 42RE, and I'm in the hunt for another one. The question that I have. Without changing out the entire engine, is there a "better" automatic tranny that I could drop right in there.

If you have a recomendation, Please explain to me Why.



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Unread 05-23-2013, 10:13 PM   #2
Afdude88
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What engine?

1993 Grand Cherokee Limited 4.0L AW-4
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Unread 05-24-2013, 12:23 AM   #3
eagsc7
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Same one as in the Specs. Engine: 4.0 Inline 6
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Unread 05-24-2013, 01:31 AM   #4
shaban
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AW-4 from an early ZJ or a Cherokee. Great tranny, almost bulletproof, but will require extensive hacking to wiring and possible persistent check engine light on OBD2 ZJ's.

42RE from a WJ is a tad better, using deeper tranny pan, newer governor solenoid & some other improvements (band friction material). Least hassle here.

AX-15 manual is another option but involves severe hacking (new clutch pedal etc)

44RE and 46RE are not going to fit due to different bellhousing (V8) , but the internals from 44RE are heavier duty and can be stuffed in 42RE.

That's pretty much all you can swap in, as far as I know.

Myself, I just put another 42RE from a WJ, had to change the neutral switch and the cooler line fittings.
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Unread 05-24-2013, 07:27 AM   #5
Afdude88
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Quote:
Originally Posted by eagsc7 View Post
Same one as in the Specs. Engine: 4.0 Inline 6
Cant see specs on the phone app.

1993 Grand Cherokee Limited 4.0L AW-4
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Unread 05-24-2013, 12:26 PM   #6
eagsc7
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Quote:
Originally Posted by Afdude88 View Post
Cant see specs on the phone app.
Ahh Yes.. Using the Mobile app alot myself I realize this is the down side with it! *Maybe a Feature Request for the Mobile app*
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Unread 05-24-2013, 02:30 PM   #7
eagsc7
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Quote:
Originally Posted by Afdude88 View Post
Cant see specs on the phone app.
Ahh Yes.. Using the Mobile app alot myself I realize this is the down side with it! *Maybe a Feature Request for the Mobile app*
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Unread 06-15-2013, 05:51 AM   #8
eagsc7
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Well, Getting a tranny built from transdepot.net, and their service has been GREAT! Course, the tranny isn't here yet, BUT I called them with a question before buying and they were really knowledgeable. I got a call yesterday saying that the tranny was leaving their shop today, and that I needed to check another connector. 15 Minutes later, we figured out that the connector in the 94 ZJ is one of 2 DIFFERENT TYPES! The connector directly behind the shift linkage (with the same orientation) has a bunch of wires coming out of it. It's either round OR rectangular. Oii! That Piece of )*(!$@(!#$ is REALLY hard to even feel due to my muding and previous oil and other leaks. Of course, the "Strong as Steel" Ramps that BROKE I returned, and haven't replaced with Actual steel. Course, I'll Prolly buy a welder and some scrap from "around" and make some Really tall ramps.
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Unread 06-15-2013, 06:24 AM   #9
Technohead
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The original one presumably lasted 19-20 years. How much better do you want?
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Unread 06-15-2013, 03:03 PM   #10
eagsc7
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Quote:
Originally Posted by Technohead View Post
The original one presumably lasted 19-20 years. How much better do you want?
30-40 years, and 1Million miles...

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Unread 06-15-2013, 03:25 PM   #11
dylantheheeler
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Quote:
Originally Posted by eagsc7 View Post
30-40 years, and 1Million miles...

Out Jeepin, usin the Mobile App
We can dream can't we?


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Unread 06-15-2013, 05:29 PM   #12
dusterdude
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A 727 would last that long
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Unread 06-15-2013, 11:06 PM   #13
eagsc7
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Originally Posted by dylantheheeler View Post

We can dream can't we?

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Yes, we can. The lotto is coming to WY and I'll br the first 30Mil winner too!!!

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Unread 06-16-2013, 12:28 AM   #14
AVR2
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Quote:
Originally Posted by shaban View Post
AW-4 from an early ZJ or a Cherokee. Great tranny, almost bulletproof
I can attest to that. They can survive levels of neglect that would kill most Jeep trannys much sooner. When I got my ZJ, the trans fluid was black and smelled horrible, and must have been like that for at least a year or two. I drained and refilled it a few times to cycle the old fluid out, and it lasted me a further three years of daily use before finally dying.
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Unread 06-16-2013, 06:32 AM   #15
shaban
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One quick note here: if using AW-4, install a tranny cooler! For some reason, AW-4 run hot, much hotter than other trannys, so extra cooler will prolong trannys lifetime and oil durability.
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