Bryan

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I'm new to the forum and was told to look on here. So here I am lol. Looking for someone that has swap manual transmission to the automatic 32rh transmission. I just bought the 32rh and needing a detailed write up on it. I was also told that a guy named @Jerry Bransford has done this before so hopping to find him. Thanks
 
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@Jerry Bransford did the swap from a manual transmission to a 32rh, so he knows this in detail.

I'll wait for him to chime in.

I never saw a write-up from Jerry about this, but I am sure he'd be able to answer any questions you have.
 
Yes I did that swap 9-10 years ago, it was one of the best mods I have ever done to my TJ. Well, I don't have a detailed writeup but I can answer any questions you may have.

A few things come to mind. You will need to replace your ECM/PCM with one programmed for the 32RH so the lockup torque converter will work. You'll need a smaller diameter front driveshaft, or just the one made for a TJ with the 32RH. You need a smaller diameter driveshaft so it'll clear the 32RH's wide transmission pan. No wiring is needed, the only wiring and connectors you need is already present and hanging above the transmission. You'll need a lot of hardware including the low-profile bolts that bolt the torque converter to the flexplate... which you also need to replace the flywheel. You need the automatic style transmission mount, plus the automatic style mount that extends upward to the exhaust pipe hanger. You'll need the hard lines to connect to the transmission cooler connections at the bottom of the radiator. Those are year-specific since they need different bends in them depending on the model year.

You'll also need to install an Extended Output Shaft Seal into the 32RH's output shaft opening, otherwise the 231's shorter input shaft configured for the AX-15 isn't long enough to seal the 32RH's output shaft opening. You can get the Extended Output Shaft Seal from
https://teraflex.com/shop_items/528ffa7fead962f416e72ea9 which is where I got mine. ATF will gush out of the 32RH if you don't install that extended seal.

One of the biggest PITAs is getting the manual transmission's pilot bearing bushing out of the end of the crankshaft. The easiest way to get that out is with the Blind Hole Puller set you can rent/borrow from Autozone like at http://www.autozone.com/loan-a-tool...ind-hole-puller-set/391362_0_0/?checkfit=true. Without that, it's a VERY tough bearing bushing to get out.

Overall it's a fairly straight forward job, especially since all the wiring is already in place. A friend & I got it installed in a weekend.

That'll at least get you started, good luck. Ask me questions as they come up.
 
That's pretty much what I need to know. ..is what all I need for it. hope I don't bother u to much with the questions lol but ill start it off with. I have a Adams driveshaft which I do believe is smaller and hoping it's smaller lol. Next is the low profile bolts. I just bought new ones from jeep along with the flex plate bolts but didn't know about having to be low profile. Is that something that I need to ask for or did I get the right ones being they are from jeep?

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I don't recall the height of the bolt heads that hold the torque converter to the flex plate but they definitely have a low profile due to the small amount of clearance there. But if they have the part number for that location, they should be the right bolts.

If the front Adams driveshaft is noticeably skinnier than what is there now it should be fine.
 
Ok I'll do some measuring on both items. Next would be the transmission mount. ..I got that from rock auto I think but didn't notice any anything different looking on it extra for the exhaust. How do I tell if it's the right one.

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There are two transmission mounts, not just the one between the transmission and skid plate. The Mopar parts drawings were helpful there. The second one supports the exhaust hanger and bolts it to the transmission but my memory is pretty hazy as to its exact name.
 
Ok so as of right now I think the only major thing I need is the computer. What about the shift linkages...I don't have anything for that. All I do have it the floor shifter which no cables came woth it. Which I know I need cables but also what linkages go on the side of it and do I need any kind of extender?

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That's pretty much what I need to know. ..is what all I need for it. hope I don't bother u to much with the questions lol but ill start it off with. I have a Adams driveshaft which I do believe is smaller and hoping it's smaller lol. Next is the low profile bolts. I just bought new ones from jeep along with the flex plate bolts but didn't know about having to be low profile. Is that something that I need to ask for or did I get the right ones being they are from jeep?

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There are two sets of bolts you need at the back of the motor. The first set is the flex plate to flywheel place bolts. They are lower profile but not what you would consider low profile and you can't substitute normal grade 8 bolts for two reasons. The first is the oddball length and the second is they are place bolts with a special head configuration to prevent loosening when torqued correctly.

The second set of bolts holds the torque convertor to the flex plate and they need to be the ones designed for that application as well for similar reasons.

As far as the wiring goes, you may or may not have the short adapter to hook up the harness for the NSS and TCC switch for lock up.

The 2002 need to have the harness from Vintage Parts purchased and used. It will plug into the adapter harness that the reverse light switch plugs into for the manual. Other years just have the correct harness folded back and taped in place.

You will also need the firewall block off plate for the clutch slave and master. Don't get sucked into the higher prices on Ebay, it is about a 10 dollar part at the dealer.

For the center console, you will need the auto shifter floor plate for the auto and the shift indicator bezel. The bulb holder is taped back along the harness under there and a 194 bulb will need to be plugged into it and then stuffed into the bottom of the bezel to light up the selector when the dash lights are on.

The auto shifter can be had at the dealer or Davey's and you will need a new shifter cable. The one from a Cherokee will work but I don't recommend it. The TJ version has a section of heat wrap on it where it goes by the exhaust manifold and the XJ version doesn't which cooks the cable housing and then it will break.

A TV or kick down cable will need to be installed. When you install it, you also remove the return helper spring from the throttle body lever and discard it. The TV cable has a spring on it at the trans bracket.

When you install the new trans mount, you will need the square adapter plate that bolts to the trans skid. The bolt holes are there and use carriage bolts pointed up with the nuts on top. It mounts over the other set of holes in the skid that the manual mount is not using.

The actual trans mount is the same but the adapter plates that bolt it up to the trans are different between the two.

The t-case shifter needs to match the one from the trans due to the different lengths. The 32 is the shortest trans Jeep used in the 6 cylinder TJ's so the t-case is further forward which also makes the front driveshaft short and the rear longer. The t-case bell crank tub side bracket is the same and the difference is made up with the bracket on the trans and the two linkage rods.

The bolts that hold the trans to the block are not the same as what holds the manual to the block and you need the motor plate with inspection cover for the plate.

It may have been mentioned but I skimmed a lot of it, but use ONLY a Mopar radiator with the auto trans cooler built into it. If it hasn't been done in awhile, now is a good time to do a flush and get some new coolant in there while you are doing the radiator swap.

The absolute hardest part of the swap is loosening the exhaust so you can snake the cooler lines between it and the oil pan. Try not to cobble together the cooler lines and only use OEM if possible. There is a check valve in one of them that prevents torque convertor drain back which delays the shift into gear after it sits overnight.

If you don't locate a PCM in time before the swap is complete, you can run it with the manual PCM. It will throw a CEL at key on start position due to not seeing the TCC lock-up circuit. It will run well enough to test the trans. Don't run it like that for long as the CEL will stay on and it may need to be on for something else that is more important that you won't know about.

The trans requires ATF+4 fluid and roughly 10-12 quarts of it. Now is a good time to do a deep pan swap and replace the grommet at the base of the dipstick tube where it enters the trans. They tend to dry out if the trans has been sitting and will weep. If you notice any holes in the trans where the pan bolts up that are a bit wonky, I have some Timeserts I use to fix them. They tend to strip out very easily in the cast aluminum. Use the re-useable pan gasket that is the hard plastic with the raised ribs. They work perfectly every time and are worth the money. The deep pan uses a drop down extension for the filter so don't get a deep pan kit without one. While you have the pan off, weld a bung in it for a temp sensor and run a temp gauge. You will or should use a small cooler in front of the radiator to aid with cooling the auto and plumb it in series with the return to the trans from the OEM radiator.
 
That right there is the definitive guide! Mrblaine is who I credit for guiding/coaching me to make that conversion, and for pointing me to a great transmission deal with nearly all the parts needed.
 
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I definitely appreciate the info! Would there be any way to get pics of moat of what you are talking about. I only have a transmission with nothing on it. So I'm not sure what brackets are used to even to the linkages on the side of the transmission.

I have bought these items for the transmission so far.....

Flex plate bolts
Torque converter bolts
Flex plate
It had the torque converter already
Dipstick tube with rubber gasket on bottom
Transmission mount
Floor shifter.


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Want to have automatic for the trails mostly

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I don't blame you. I know a lot of guys like their manuals, but when I am out on the trail the automatic makes my life so much easier!
 
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Why is it you want to swap to the 32rh? Just curious mostly
2-3X greater low-end torque, infinitely low first-gear ratio, and better/easier control on extremely difficult trails. All thanks to the magic of the automatic's torque converter. :)
 
I definitely appreciate the info! Would there be any way to get pics of moat of what you are talking about. I only have a transmission with nothing on it. So I'm not sure what brackets are used to even to the linkages on the side of the transmission.

This should help. Item #1 is the part that supports the exhaust system above the transmission.

Trans mount.JPG
 
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This shows pretty much everything else. This also reminds me I did not bother installing the 'Cable, Park Interlock'. It's not really needed.

Trans linkages.JPG
 
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Well this will definitely help me get what I need to get started. Thanks again.....I'm sure I will have more questions...

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Quick question. ..found 2 emc on ebay...it says it's for a tj automatic. ...do I need to check anything else as in the numbers on it? Or as long as it's for a 99 tj automatic?

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