TF999 to AW4 - JeepForum.com

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post #1 of 20 Old 03-28-2011, 05:43 AM Thread Starter
VACJ5
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TF999 to AW4

I know there is a bunch of threads on this topic... I tried searching and didnt come up with much. But any of you guys who have done this swap... if there is any info you can provide... it would be much appreciated!

I picked up an AW4 out of a 99 cherokee. It has the flex plate, wiring harness, torque converter all on a transmission with a fresh rebuild. I figure I am going to have to do the following:

Remove all of my column shift linkage
Swap to a floor shifter
New crossmember
Splice wiring harness
lengthen/shorten driveshafts

My questions are... It did not come with the TCM. Will any AW4 TCM work? Also, what kinda wire splicing am I looking at having to do here? I have seen some writeups online a few on STU's page... but most of those are guys going from already electronic controlled transmissions to another. My 999 does not have any electronics. So once again, any tips or info would be appreciated!


79 CJ5 Silver Anniversary Edition... revived & sold *sniff
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post #2 of 20 Old 03-28-2011, 01:24 PM
dodger889
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A simple answer yes but you will need a little more. TCU from about any should work now you will need to add the connection for the speed sensor to you existing one for the ECU. I hoped you also picked up the torque converter too. Now you could have used you existing column shifter. You would have had to adjust it to where park, reverse, neutral, drive( which becomes over drive) are correct position but drive(2) and 1-2 (1)would not be in the right place. Since the aw4 does not use first by itself use that position as a combined position.There are some write ups on adding some switches to have the aw4 to hold first by flipping a switch or making it manual shifting and torque converter lockup. Oh one other thing the 99 flex plate will not work for your ECM sorry.

A 89 yj with a 4.0 aw4 sye out of an 92xj. Now the hard part is done time to get it up in the air just a bit. Working on 8.8 with 3.73 and lsd for the rear. and new D30 hp with 3.73 .
For those who have not figured this out I'm old school but can handle the new too.
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im just cheap, and cheap makes you creative.
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post #3 of 20 Old 03-28-2011, 02:35 PM Thread Starter
VACJ5
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Quote:
Originally Posted by dodger889 View Post
Oh one other thing the 99 flex plate will not work for your ECM sorry.
Yep, I got the TC, but why won't the 99 flex plate work?

79 CJ5 Silver Anniversary Edition... revived & sold *sniff
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91 2 door Cherocar... in progress

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post #4 of 20 Old 03-28-2011, 03:13 PM
dodger889
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Quote:
Originally Posted by VACJ5 View Post
Yep, I got the TC, but why won't the 99 flex plate work?
Wrong cuts for crank position sensor 99 has with 3 x3 groups of larger cuts. Where the 91 has multi smaller cuts in between the groups of 3 .

A 89 yj with a 4.0 aw4 sye out of an 92xj. Now the hard part is done time to get it up in the air just a bit. Working on 8.8 with 3.73 and lsd for the rear. and new D30 hp with 3.73 .
For those who have not figured this out I'm old school but can handle the new too.
Quote:
Originally Posted by bigsquat View Post
im just cheap, and cheap makes you creative.
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post #5 of 20 Old 03-28-2011, 08:01 PM
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Quote:
Originally Posted by dodger889 View Post
... Now you could have used you existing column shifter. You would have had to adjust it to where park, reverse, neutral, drive( which becomes over drive) are correct position but drive(2) and 1-2 (1)would not be in the right place.
One correction here... you cannot use the YJ column shifter to shift the AW4. You will need to either use an XJ shifter and cable and modify them to work in the YJ or buy a Rock/Rail Shifter combo from RADesigns. Those are the only two options you have for a shifter in the YJ. You can kludge something else together but I've never seen anything else work reliably. The dozen or so column setups I've seen all sucked.

"Si Vis Pacem Para Bellum"

"Great danger lies in the notion that we can reason with evil"
Doug Patton
Quote:
...We use words like honor, code, loyalty. We use these words as the backbone of a life spent defending something. ...I have neither the time nor the inclination to explain myself to a man who rises and sleeps under the blanket of the very freedom that I provide, then questions the manner in which I provide it. I would rather you just said thank you, and went on your way, Otherwise, I suggest you pick up a weapon, and stand a post...
Quote:
I bought the HI-WAY BLASTER HORN that's 139dB and every time I honk the horn an Angel dies.
Quote:
Revelation 13:16-18
16 - He causes all, both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads,
17 - and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.
18 - Here is wisdom. Let him who has understanding calculate the number of the beast, for it is the number of a man: (Real ID and RFID chips)
Think about it...
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post #6 of 20 Old 03-28-2011, 09:14 PM Thread Starter
VACJ5
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I had no intention of using my stock column shifter. But the flex plate part interests me. Is the bolt pattern on the AW4 torque converter different than the TF999 TC? In other words, would my 91 YJ flex plate and ring bolt up to the AW4 torque converter?

79 CJ5 Silver Anniversary Edition... revived & sold *sniff
91 YJ 4.0 L, with some stuff bolted to it... 3/4 Ton YJ
91 2 door Cherocar... in progress

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post #7 of 20 Old 03-28-2011, 09:15 PM
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No, they will not.

"Si Vis Pacem Para Bellum"

"Great danger lies in the notion that we can reason with evil"
Doug Patton
Quote:
...We use words like honor, code, loyalty. We use these words as the backbone of a life spent defending something. ...I have neither the time nor the inclination to explain myself to a man who rises and sleeps under the blanket of the very freedom that I provide, then questions the manner in which I provide it. I would rather you just said thank you, and went on your way, Otherwise, I suggest you pick up a weapon, and stand a post...
Quote:
I bought the HI-WAY BLASTER HORN that's 139dB and every time I honk the horn an Angel dies.
Quote:
Revelation 13:16-18
16 - He causes all, both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads,
17 - and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.
18 - Here is wisdom. Let him who has understanding calculate the number of the beast, for it is the number of a man: (Real ID and RFID chips)
Think about it...
jeeepguy is online now  
post #8 of 20 Old 03-28-2011, 09:17 PM Thread Starter
VACJ5
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Thanks! Looks like I am on the hunt for a 91 flex plate then... what year range will work?

79 CJ5 Silver Anniversary Edition... revived & sold *sniff
91 YJ 4.0 L, with some stuff bolted to it... 3/4 Ton YJ
91 2 door Cherocar... in progress

BeachMetalWorks Custom CNC cut Jeep parts & more
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post #9 of 20 Old 03-28-2011, 09:34 PM
jeeepguy
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Any flex plate from any year AW4 will work. '87 to '01

"Si Vis Pacem Para Bellum"

"Great danger lies in the notion that we can reason with evil"
Doug Patton
Quote:
...We use words like honor, code, loyalty. We use these words as the backbone of a life spent defending something. ...I have neither the time nor the inclination to explain myself to a man who rises and sleeps under the blanket of the very freedom that I provide, then questions the manner in which I provide it. I would rather you just said thank you, and went on your way, Otherwise, I suggest you pick up a weapon, and stand a post...
Quote:
I bought the HI-WAY BLASTER HORN that's 139dB and every time I honk the horn an Angel dies.
Quote:
Revelation 13:16-18
16 - He causes all, both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads,
17 - and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.
18 - Here is wisdom. Let him who has understanding calculate the number of the beast, for it is the number of a man: (Real ID and RFID chips)
Think about it...
jeeepguy is online now  
post #10 of 20 Old 03-29-2011, 04:35 AM Thread Starter
VACJ5
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Quote:
Originally Posted by jeeepguy View Post
Any flex plate from any year AW4 will work. '87 to '01
But I have a flex plate off of the 99 Cherokee which was mated to the AW4... the issue is still with the CPS holes correct?

79 CJ5 Silver Anniversary Edition... revived & sold *sniff
91 YJ 4.0 L, with some stuff bolted to it... 3/4 Ton YJ
91 2 door Cherocar... in progress

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post #11 of 20 Old 03-29-2011, 09:01 AM
jeeepguy
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I was referring to using the TF999 parts trying to mate to the AW4. The '99 flex plate will work and the TPS will work same as it did in the XJ. When I did my conversion, I simply transferred the engine and tranny from the XJ directly into the YJ and reconnected up the wiring using the original TCM/wiring harness and a YJ engine harness.

"Si Vis Pacem Para Bellum"

"Great danger lies in the notion that we can reason with evil"
Doug Patton
Quote:
...We use words like honor, code, loyalty. We use these words as the backbone of a life spent defending something. ...I have neither the time nor the inclination to explain myself to a man who rises and sleeps under the blanket of the very freedom that I provide, then questions the manner in which I provide it. I would rather you just said thank you, and went on your way, Otherwise, I suggest you pick up a weapon, and stand a post...
Quote:
I bought the HI-WAY BLASTER HORN that's 139dB and every time I honk the horn an Angel dies.
Quote:
Revelation 13:16-18
16 - He causes all, both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads,
17 - and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.
18 - Here is wisdom. Let him who has understanding calculate the number of the beast, for it is the number of a man: (Real ID and RFID chips)
Think about it...
jeeepguy is online now  
post #12 of 20 Old 03-29-2011, 09:15 AM Thread Starter
VACJ5
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Gotya... Sorry for the confusion.

Quote:
Originally Posted by dodger889 View Post
Oh one other thing the 99 flex plate will not work for your ECM sorry.
So to clarify then... this statement is false?

I have a 91 YJ, with a 4.0 & TF999, I have an AW4 from a 99 XJ with a 4.0, I plan to use the flexplate off the XJ with my YJ 4.0 and CPS.

79 CJ5 Silver Anniversary Edition... revived & sold *sniff
91 YJ 4.0 L, with some stuff bolted to it... 3/4 Ton YJ
91 2 door Cherocar... in progress

BeachMetalWorks Custom CNC cut Jeep parts & more
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post #13 of 20 Old 03-29-2011, 09:21 AM
jeeepguy
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No, actually he is correct. I forgot about the ECM changeover in '96. The correct statement is "Any flex plate from any year AW4 will work. '87 to '95

In stand corrected.

"Si Vis Pacem Para Bellum"

"Great danger lies in the notion that we can reason with evil"
Doug Patton
Quote:
...We use words like honor, code, loyalty. We use these words as the backbone of a life spent defending something. ...I have neither the time nor the inclination to explain myself to a man who rises and sleeps under the blanket of the very freedom that I provide, then questions the manner in which I provide it. I would rather you just said thank you, and went on your way, Otherwise, I suggest you pick up a weapon, and stand a post...
Quote:
I bought the HI-WAY BLASTER HORN that's 139dB and every time I honk the horn an Angel dies.
Quote:
Revelation 13:16-18
16 - He causes all, both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads,
17 - and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.
18 - Here is wisdom. Let him who has understanding calculate the number of the beast, for it is the number of a man: (Real ID and RFID chips)
Think about it...
jeeepguy is online now  
post #14 of 20 Old 03-29-2011, 09:33 AM Thread Starter
VACJ5
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Okay... now I'm getting somewhere! hahaha. I need an 87-95 flex plate.

79 CJ5 Silver Anniversary Edition... revived & sold *sniff
91 YJ 4.0 L, with some stuff bolted to it... 3/4 Ton YJ
91 2 door Cherocar... in progress

BeachMetalWorks Custom CNC cut Jeep parts & more
VACJ5 is offline  
post #15 of 20 Old 03-29-2011, 06:43 PM
dodger889
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Quote:
Originally Posted by jeeepguy View Post
One correction here... you cannot use the YJ column shifter to shift the AW4. You will need to either use an XJ shifter and cable and modify them to work in the YJ or buy a Rock/Rail Shifter combo from RADesigns. Those are the only two options you have for a shifter in the YJ. You can kludge something else together but I've never seen anything else work reliably. The dozen or so column setups I've seen all sucked.
Then mine should not work huh?? That is the funny because mine works just fine. Has worked now for about two years the problem is the crank shaft engine side needs to be modified to work. This does take a little thinking about how to do the modification.

A 89 yj with a 4.0 aw4 sye out of an 92xj. Now the hard part is done time to get it up in the air just a bit. Working on 8.8 with 3.73 and lsd for the rear. and new D30 hp with 3.73 .
For those who have not figured this out I'm old school but can handle the new too.
Quote:
Originally Posted by bigsquat View Post
im just cheap, and cheap makes you creative.
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