I assume all that came behind 6-cyl TJ's will be 23-spline. What will I need to do the swap besides the flex plate, converter, tranny, and shifter? Anyone know the length difference between the two? Do the tranny mounts line up? Anything else I need to look out for?

Instead of putting a crappy tranny in your cherokee why don't you put a T-18 or something worthwhile?

You will need swinging pedal assemblies, clutch master cylinder, computer possibly, fab up some tranny mounts, a lot more than you will think.

AX-15s are crap transmissions.

Originally posted by Wes in TN
I assume all that came behind 6-cyl TJ's will be 23-spline. What will I need to do the swap besides the flex plate, converter, tranny, and shifter? Anyone know the length difference between the two? Do the tranny mounts line up? Anything else I need to look out for?

Don't forget the kickdown cable. The length of the TF-999 is about 23.5" (rough) from the bottom of the bell housing to the mounting surface of the TC. The Flexplate might be a problem. Get the flexplate from a 32RH? (electronic controled TF-999) that has the CPS ring around it. Then find a torque converter that will bolt up to the flexplate you have. You might have to drill new holes in the flexplate for the TC.


Jason R what is the point of your post? :confused: Was it to tell Wes that the AX-15 is crap? Maybe that's the reason he's taking it out?

Now I see why your post count is high. :flipoff2:

i dont know the dimensions on the 999, but I plan to plant a 700r4 where my crappy ax15 sits. It will only be 1.5" longer based on my research. OD, OD, daily driver.:D

sorry I re-read the post and realized i was bass ackwards.

Originally posted by gripguru
i dont know the dimensions on the 999, but I plan to plant a 700r4 where my crappy ax15 sits. It will only be 1.5" longer based on my research. OD, OD, daily driver.:D

Are you putting a 700r4 behind a 4.0? If so, I would love to hear what all goes into that... maybe I just haven't been paying attention, but I haven't heard of that swap before.

thanks
brett

AW4

Originally posted by BrettM


Are you putting a 700r4 behind a 4.0? If so, I would love to hear what all goes into that... maybe I just haven't been paying attention, but I haven't heard of that swap before.

thanks
brett

just a taste that it is real and if you search, you will find some more info (http://www.transmissioncenter.net/Jeep.htm)

Originally posted by Recurve
AW4

Exactly! Why try to adapt a 3 spd tranny to your XJ, when it came with a decent 4 spd from the factory in most of them. It can't be hard to do that swap.
Scott

The AW-4 is computer controlled. It would take alot more time, effort, and cabbage to get the AW-4 up and running than it would a T-999. That and I don't really need overdrive on the trail.

Originally posted by Po' riggity


Exactly! Why try to adapt a 3 spd tranny to your XJ, when it came with a decent 4 spd from the factory in most of them. It can't be hard to do that swap.
Scott

http://www.stu-offroad.com/aw4/index.htm

Originally posted by Recurve
http://www.stu-offroad.com/aw4/index.htm

To clarify, I AM NOT INTERESTED IN SWAPPING IN AN AW-4! That is why the thread title doesn't include any reference to the AW-4, it refers to the T-999. I appreciate the post though, it does answer a few questions but not all.

Can anyone confirm or deny that the AX-15 and T-999 use the same lenght input shafts?

I'm not sure of your answer but I know there are two types of TF-999. Lockup or non-lockup. I know the TC's for the two are different and that the input shafts are completely different looking but I don't know how that would relate to the lenght of the input shaft on the aw-15. Is your TF-999 lockup or non lockup?

I don't have one yet, I'm still in the research phase. I'm looking to score one from a late model TJ, whatever that's worth.

Originally posted by ScottDeLano
I'm not sure of your answer but I know there are two types of TF-999. Lockup or non-lockup. I know the TC's for the two are different and that the input shafts are completely different looking but I don't know how that would relate to the lenght of the input shaft on the aw-15. Is your TF-999 lockup or non lockup?

late model TJs have lock up trannys in them. but you could prolly wire up a switch to control the lock up so you can be in 1st and have engine braking. as far as lenghts go i beleive the automatic is shorter than the AX15.

OK:confused: The TF-999 was not used passed 91?? After that the TF-999 received an electronic controller and became the 32RH.

What am i missing?

Okay so I'm looking to swap in a 32RH, I didn't know the nomenclature had changed. Could a regular torque converter from an earlier 999 be swapped into the 32RH to get rid of the need for the electronicaly controled converter or should I turn my focus to a pre-'92 999?

wes either way the 32rh or tf-999 is not computer controlled. pre 91 or post 91

Thanks Mike, what triggers the lock up though? Is it something that I could adapt to my '93 or will a switch be the only way to go? I'm clueless about autos, I've never owned one and I've never worked on one that wasn't self-contained.

Originally posted by TR
wes either way the 32rh or tf-999 is not computer controlled. pre 91 or post 91

remeber dan had a TJ auto in his cj for a while. any way all you need to do is put 12 volts to the plug in to lock up the converter, so yes a simple switch would work. that way when you are going down hill in 1st you can lock up the converter and have engine breaking. Im only here to help since me previous employer didnt need it.

Lock up on the 32rh is controlled by the PCM. Don't know if you PCM has what it takes or not.

How do you use a manual lock up switch offroad for engine braking? When do you apply it and when do you turn it off and what do you hafta lookout for? Can you rig it up to work normally when the switch is off?

Originally posted by TR
wes either way the 32rh or tf-999 is not computer controlled. pre 91 or post 91

I, humblely, stand corrected! Thanks for the clarification.

If you have a automatic PCM then yes you can rig it up to work either way. since wes has a manuel pcm his would have to be controlled manually via a switch. you would apply it right when you started to go down hill, it would be just like a manual then if you stop the truck with it engaged then you would stall the truck. also if you are crusing down the hiway and wanted more milage you could turn it on to bring the revs down.

Originally posted by ScottDeLano


I, humblely, stand corrected! Thanks for the clarification.

the h stands for a hydraulicly controlled tranny. if it said 32re then yes it would have to use a computer to shift it.

Ok, let's go one step further. Could you use the TC switch to start the jeep with (like a manual tranny?)
ie. Get the jeep going down an incline, flip the switch to lock the TC and crank the jeep? That would be way cool.

that would be sweet but since the engine has to be turing the front pump in order for the transmission to go into gear. I beleive that there are some circle track trannys that can be roll started but they dont use a torque converter at all just a direct connection from the engine to the pump.