Need to swap the AX15 to AW4 - JeepForum.com
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post #1 of 28 Old 09-25-2017, 08:45 PM Thread Starter
ionakana
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Need to swap the AX15 to AW4

So I get back in to town and the wife tells me the Jeep needs a clutch, well a slave cyl to be exact but if I have to drop the trans it will get both. My wife has major back problems and pushing the clutch hurts her. She's has always been against automatics in a Jeep but now has changed her mind. So I can go spend a gazillion dollars and buy her an automatic Jeep that she will only drive during nice weather or convert mine that I have owned for 21 years. I'll save $1.2 billion and convert mine!

I know the AW4 is almost a direct bolt in, they are plentiful at the pull-a-parts here so I can get everything needed from the same vehicle. I believe I will have to clock the T-Case and do a little wiring to control the transmission if I want to hold it in gear and I do. I cannot find a write up on this swap anymore. I can find bits and pieces but I want a start to finish write up. Stu's is gone, well at least for a YJ. He has a TJ write up. Is there another one out there? Can't find one on here either.

Somebody mentioned taking a 42RLE out of a TJ but I'm not sure what is involved with that and/or if it's a better swap.

Help!


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post #2 of 28 Old 09-25-2017, 08:55 PM
JeeperDon
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If she drives it that rarely, and it's your Jeep, and has been for that long, leave it alone! Fix the clutch. She will have to cope.

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post #3 of 28 Old 09-25-2017, 09:13 PM Thread Starter
ionakana
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Originally Posted by JeeperDon View Post
If she drives it that rarely, and it's your Jeep, and has been for that long, leave it alone! Fix the clutch. She will have to cope.
It will cost me in other ways if you know what I mean and besides, I know she loves to drive it and it really does hurt her. So she'll want to buy an automatic Jeep to drive during the spring and fall, or I can probably do the conversion for under $1000.00.

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post #4 of 28 Old 09-26-2017, 01:10 AM
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post #5 of 28 Old 09-26-2017, 06:50 AM Thread Starter
ionakana
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I saw the shifters but haven't had a chance to read up on them. Do they let you manually control it and let it work in auto mode?

Thanks for the links, it'll give me airplane reading material. The good news is she is in no hurry, just wants me to have it back up and running by spring. I offered to get her a new JK last night and she turned it down saying "then I will be just like all the other women out there and confused for a soccer mom!"
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post #6 of 28 Old 09-26-2017, 06:54 AM
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Another option for wiring is to get yourself a full Cherokee harness w AW4 and computer and adapt it to the YJ... I did a cherokee swap... I'm not sure if this is any easier or harder that splicing the AW4 controller into your current harness... Probably more $$

If you opt for this make sure the chrerokee computer DIDN'T have the security feature, or no bueno..

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post #7 of 28 Old 10-02-2017, 08:45 PM Thread Starter
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So I might have found an auto LJ for the wife, going to look at it this weekend. She still says a JK is not even an option.

So in the mean time I have a charity ride next weekend at my favorite park that closed down. He's opening up for the weekend just for this Children's charity event. So I think I'm going to just replace the slave cylinder and maybe pilot bearing for now. The clutch itself still feels good and this is just a short term fix. If I leave it manual I'm going to convert to an external slave when I install my 241or T-case. I don't have the time to gather all the parts in time to install by Saturday.

Lucky me, I have a 94 model but was built in September 93 and has the internal slave. When I had the trans rebuilt 14 years ago I put in a Mopar slave but they quit making them. I've been hearing horror stories about aftermarket slaves, people going through 3-4 just to find a good one. I don't have that kind of time or feel like dropping the trans more than once. I know Luk clutches are good, what about their slave cylinders. The other brand I figure might be good is Timkin. Any advise?
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post #8 of 28 Old 10-02-2017, 09:14 PM
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All 4 of our Jeeps have the garden variety 32RH/A999

Hydraulic controlled and reliable.
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post #9 of 28 Old 10-03-2017, 10:06 AM Thread Starter
ionakana
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All 4 of our Jeeps have the garden variety 32RH/A999

Hydraulic controlled and reliable.

I want overdrive, to many expressway trips. There's nowhere to wheel around here, everything is 2-3 hr drive.

Would 4.56 gears be enough for the AW4 on 35" tires or not enough?

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post #10 of 28 Old 10-03-2017, 11:37 AM
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Quote:
Originally Posted by ionakana View Post
I want overdrive, to many expressway trips. There's nowhere to wheel around here, everything is 2-3 hr drive.

Would 4.56 gears be enough for the AW4 on 35" tires or not enough?
Running 4.10 on 35s w the AW4 an drive 3 hrs... doesn't seem terrible... I've got no comparison.... Get 12 MPG. 4.56 might be a better choice

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post #11 of 28 Old 10-03-2017, 12:48 PM
mike134
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about $1000 to change the transmission.

About $4000 for an entire Jeep.

Buy a second Jeep.
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post #12 of 28 Old 10-03-2017, 01:01 PM
Luuca
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Quote:
Originally Posted by mike134 View Post
about $1000 to change the transmission.

About $4000 for an entire Jeep.

Buy a second Jeep.
Don't think it will cost him $1000 to swap out the trans.

1. AW4 in good condition with ECU harness, TCU, shifter, TC shift linkage is about $350-$400 here.
1a. AX-15 for sale in working condition is $700 here. Net $300 profit.

2. Trans cooler lines are $135 from Autozone.
3. Radiator, if aftermarket, should already have trans cooler.
4. Clocking the TC is $5 for an new drill bit, $10 if you buy a new pilot drill bit
5. Transmission mount $35
6. trans mount fab work welding/cutting $150 from a shop (free if you have the skills)
7. Drive shaft lengthen front and shorten rear $250.
8. Semi-flat black paint to clean up the skid and pretty up the rig $15

$75 cost not including labor.
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post #13 of 28 Old 10-03-2017, 01:05 PM
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Hmmm.

Logic always seems to defy jeep ownership
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post #14 of 28 Old 10-03-2017, 01:44 PM
Luuca
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Originally Posted by mike134 View Post
Hmmm.

Logic always seems to defy jeep ownership
In fact, if he was local, I'd do the basic fitment ( bolt it in and fix the skid mount) and supply the 4wd AW4 in trade for the AX-15.
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post #15 of 28 Old 10-03-2017, 02:56 PM
mike134
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In fact, if he was local, I'd do the basic fitment ( bolt it in and fix the skid mount) and supply the 4wd AW4 in trade for the AX-15.
That's an even better deal!

But... how do you suggest he drive his Jeep while his wife is driving it?
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