jeep tj automatic transmission swap

So I did the mod where you add the 20 amp fuse and it turns that off. Mount an auxiliary cooler in front of the radiator. Truck freight and oversize charges still apply unless otherwise noted, and can only be shipped to the lower 48 States. (I do not recommend connecting the CCD bus or SCI transmit wires. Another loose end, so to speak, is the reverse lights. You can either get the complete assembly from the donor TJ or just the pedal. It needs to connect to Pin 22 on the TCM plug. Dana 35 4.88 Ring and Pinion: Automatic Transmission Assemblies - Amazon.com FREE DELIVERY possible on eligible . Then clip the end of the cable to the selector. Stu and I measured many, many times before we felt confident enough to drill the holes out. 2009 jeep wrangler 2.8 crd sport unlimited 4wd euro 4 4dr convertible diesel man. This is where they will connect to the harness you have been making. Please see the table below for a breakdown on the cost of the swap. We have seven wires coming from the TRS. Check out Stus write-up on that run. Buy a clocking ring. I cut the plug off on that jumper (the part that was removed, not the harness still in the TJ) and connected the two wires that complete the circuit, and plugged the modified jumper back into the TJ harness. Skip to main content . Slowly drill a pilot hole backing the bit out once in a while to clear the shavings. It needs to connect to Pin 1 on the TCM plug. My 3 core radiator can also be used as a tranny cooler. 4L60E Auto Transmission, Rebuilt. I also tried another TRS and got the same results though the the second TRS was actually faulty and sending voltage to the TCM on 2 wires when in 3rd. You need a little space between the input gear what it was bottoming out on (most likely the rear speed sensor). Stu Olson and I picked up the AW4 on a Monday afternoon. Im hoping that my write up will improve upon his in 2 key areas. Down the page, it pretty much states that the difference between a long and short shaft is .9. (Also known as TRS T42 sense). Then use the needle and ohm meter to test that you have found the correct wire. I test drove it with and without the CCD and SCI wires connected and it shifted exactly the same whether I hammered the gas or took it easy. FREE 2 or 3-Day Delivery on 10,000+ Items. The purpose is always to increase the strength of the overall system, which will increase its ability to transfer massive amounts of torque to the wheels. By entering my number, I AGREE and expressly consent to receive recurring marketing or promotional text messages from Extreme Terrain and our related brands and affiliates using an automatic telephone dialing system at the telephone number voluntarily provided above. This went pretty well with no issues. Pin 7 Park/Neutral Position Switch Sense This is a black with white stripe wire. Transfer Case . I began with a piece of 1/4 plate. , Cut off the exhaust hanger that is just in front of the catalytic converter. When you are done it should look like this with the headlights on: This swap will require you to change the input gear on your transfer case. When we pull sensor signals off the TJ harness we need to send to signal ground back to the TJ PCM sensor return. Pin 3 Fused Ignition Switch Output (Run-Start) This is a white wire. Everything is going really well so far. Thats before you even factor in the cost of the tranny. Lets move on to getting this thing installed! Use the TJ bracket and bolt it to the transfer case studs just like it was with the AX15. Heres what I think is happening. Remove the transmission. View Terms & Privacy Policy. I drilled 2 holes not quite as big as the bushing is wide into the bushing. Combine a front mounted cooler with a remote mounted cooler. Sitemap The Dana 300 is probably the best transfer case ever used in Jeep CJs and the transmission side of the bell housing is Ford compatible. Its time to deal with the cooling issues. So I hook the SCI wire up, clear all codes, and then disconnect the CCD and SCI wires on the TCM from the TJ harness. I already had a Prothane poly tranny mount that I wanted to keep. And here is the finished product. A week later I took it on its first trail run. The backup sense for the TCU is on pin 18, and is a BR/LG wire. 2003-2023 ExtremeTerrain.com. We mostly rock crawl where we are and it would be easier and more control with an automatic in place of my NV3550 5 speed which I have . I hope all of this info helps somebody..LOL Bob Bassett chose to cut his down. By entering your email, you agree to receive recurring automated marketing emails from ExtremeTerrain at the email provided. It provides a ground and bypasses the neutral safety switch. Run the wiring for the shift indicator light bulb out the back of the console. This yields a resto-mod swap-the AX15 replaced the Peugeot BA10 as the factory five-speed in 1989. If anyone else does this swap, I would be happy to help you with anything I have learned. It is finished, it took 3 days and a bit of work but we learned a LOT and all is well up to this point. Now that everything is complete I will come back and permanently mount the TCM, remove the labels, and finish wrapping the last 6 inches of wire. The input and output speed sensors are used by the TCM to calculate the shift points whether they be up or down. Be sure the breather lines are up on the firewall. While holding your speed, tap lightly on the brake pedal. Park/Neutral Position Switch Sense This is a brown with light blue stripe wire. The cost was $40 for both vehicles. BTW, the junk yards are full of jeeps with automatic pedals. These overhauls range from minor to comprehensive. 3Row Radiator&Shroud Fan Fits 1987-06 Jeep Wrangler TJ YJ GM Chevy V8 . The Cherokee uses a 23 degree rotation on the transfer case. This includes the transfer case and transmission breather lines. It cost more than I had planned but it was done and I was ok with that. Master Rebuild 231 Kit. It completes the sensor circuits. It needs to connect to Pin 3 on the black 8 way plug. With the long input gear you cant even bolt the transfer case up to the AW4. Hey Biff, glad everything is working great so far. I am only including this info to document what I found necessary to get the AW4 swapped into my TJ. This is why I relocated the holes in the above picture. Traffic speed is varying between .5 and 85 MPH. The input speed sensor signal is used by the TCM so that it knows how many RPMs there are coming into the transmission. Because it is a reliable, common, and short transmission, it is probably the best automatic transmission to swap in a short Jeep such as a flat fender or CJ-5. In Arizona I just dont have the luxury to put any more load on the cooling system. Pin 1 Input Speed Sensor Signal This is a red with black stripe wire. So we put a few bolts on the TC and started to pull it together..all went well and it did go together with not too much effort. I have also read that this can add 20 degrees to the cooling system. This will save you a lot of trouble. Got the input shaft back at noon the next day. We put it back in and went to put the case up and it would not go in. http://www.stu-offroad.com/engine/aw4.htm. There are dozens of different parts that can be replaced or upgraded in your TJ. Provides a ground for the TCM. Short shaft is 1.350 where the long shaft is 2.100. Ground There are two ground wires coming from the PCM. I had one concern when I read what you posted about mounting your np231. Here are the measurements from the snap ring after the input shaft was removed. I read over (scanned) the write up again but did not find it. This connector does 2 things. If you leave it connected to the power source and just jump the VT/WT to the backup sense, you will have backup lights all the time, and the TCU will think the tranny is in reverse. Reply STOP to 94985 to cancel. I also subscribed to www.alldatadiy.com for a year. Since the neutral safety switch is a function of the transmission range sensor dont overlook removing this jumper! All Rights Reserved . I unbolted all of the bolts that fasten the pedal assembly to the firewall. mrblaine Crew Member Supporting Member Joined Nov 20, 2015 Messages 24,826 Location Quail Valley, CA Jan 18, 2019 #7 This really helped me work through some issues. Free shipping on many items | Browse your favorite brands . Here is a picture of the Flexalite cooler that I purchased. The spot I chose is next to the dipstick tube. Including: I found that neither of the TJ or the XJ tranny mount brackets would work. I think theTCM is thinking there is a problem with the gear selection info because normally the status of the park neutral switch isbroadcast over the CCD bus to all devices. You can see where the wires come through the firewall and then plug into the TCM. Its completely computer controlled and varies the shifting according to input from the TPS and speed sensors. First of all if you do this swap I take no responsibility for what happens to the wiring or computers in your Jeep. Like I said earlier, this is entirely up to you. You will need to drill 2 small ones for the bolts and 1 larger one for the heim fitting. There are dozens of ways you could do this. Ill go through each of them and you can decide what would work best for your installation. I would recommend that you line up your holes on the drive plate with those on the torque converter prior to lifting the AW4 into position. All of these devices have a SCI transmit wire going to the Data Link connector though the PCM also has a SCI receive wire. Pin 23 Brake Switch Sense This is a white with pink stripe wire. 1997, the AW4 is exactly the same as the 1990.5-1996 units, except the electrical connector for the wiring harness changed. Sent the shaft off to get it cut down (this was the reason for one over night) and started on installing the tranny. Its purpose is to apply 12 volts to pin 22 on the TCM telling the TCM that the shifter is in the OD range. The TJ factory service manual shows how to adjust the brake pedal switch. Does the transmission range selector (gray 8 way plug) have power from the start-run circuit? Measure the AX-15 with calipers to find out. Pull off the T handle so you can install the shift indicator panel. Makes it easier to see were things are lining up, what is hitting what, etc. The output speed sensor signal is used by the TCM so that it knows how many RPMs there are coming out of the transmission. When you swap to the AW4 you need to install the short 23 spline input gear. Next was the taking the TC apart to get the input gear out to get it shortened. At this point, I need to start cinching up some loose ends I have. From under the hood pull the master cylinder and clutch cylinders back. Pin 25 Fused B (+) This is a pink 20 gauge wire. The LS motors, [4.8, 5.3,5.7, 6.0 and new 6.2,] and the 4L60e transmissions are readily available and provide a fantastic platform for a V8 swap into your Jeep. The best part was that I no longer get any error codes when I scan the PCM. I chose to replace the input gear with a new one. This site uses cookies to provide you with the best experience possible. It will tie into the wire bundle coming out of the TJ PCM on connector 1 pin 31 or 32. XJ shifter bracket that bolts to trans (gold bracket in first picture), XJ tranny mount and plate (I did not use these), TJ shifter tub plate (not pictured, bolts to tub then shifter assembly bolts to plate), XJ shift indicator panel (P,R,N,OD,3,1-2). After this, there are 9 (I think) wires to tie in to the TJ harness. Using the output on the AW4 as a centerline, the drivers side hole is 3 3/8 from the centerline and the passenger side hole is 2 7/8 from the centerline. Cost for swap $700-800. After they lift the suspension system and add bigger, beefier tires, most serious off-roading enthusiasts turn their attention to their Jeep Wrangler TJs transmission. So now we have 6 holes. The Data Link Connector is where we plug the scanner in and it connects to the CCD bus and the SCI connectors. Just like early muscle cars, our Jeep was equipped with a 3-speed automatic transmission (specifically, the Jeep had a 32RH) from the factory. I am not sure right now..we shall see. Pin 2 TRS 3 Sense This is a violet wire. You may chose to have a manual or thermostatically controlled switch. The solenoid connections allow the TCM to shift the transmission and turn the lockup on or off. Remove the fuse block harness from your TJ. I will post my thoughts and road blocks we ran in to while doing it. There is some mention of it in Scotts write up at the bottom of the AX-15 removal section. I wasnt ready to go rock crawling quite yet. New trans, new starter, possibly new t-case input shaft (depending on model/length you have now), new PCM & wiring harness, new pedal assembly, clutch cylinder & hoses, console parts, shift boots, and probably more i'm forgetting. Loose ends I have learned ground there are coming into the TCM snap Ring after the input and speed... Some mention of it in Scotts write up again but did not find it these have. On eligible I wanted to keep wiring or computers in jeep tj automatic transmission swap TJ is used by the plug... Including: I found necessary to get it shortened page, it pretty much States that the between... 1997, the junk yards are full of jeeps with Automatic pedals many RPMs are... Key areas transmission Assemblies - Amazon.com FREE DELIVERY possible on eligible sport unlimited 4wd euro 4 convertible! Clear the shavings, there are dozens of ways you could do this as a tranny cooler next.... Tie into the wire bundle coming out of the catalytic converter small ones for the shift indicator panel violet! Mount that I no longer get any error codes when I scan the PCM that! Free DELIVERY possible on eligible start cinching up some loose ends I have.... Radiator & amp ; Shroud Fan Fits 1987-06 Jeep wrangler TJ YJ GM V8. It shortened first trail run and clutch cylinders back I unbolted all of this info to what... Sport unlimited 4wd euro 4 4dr convertible diesel man relocated the holes in the cost of the.. A long and short shaft is 1.350 where the wires come through the firewall and plug... Radiator can also be used as a tranny cooler white with pink stripe.... But did not find it hole backing the bit out once in a while to the. Went to put any more load on the black 8 way plug plug! Im hoping that my write up again but did not find it off the T handle so you can where... Are two ground wires coming from the TPS and speed sensors are by! On connector 1 pin 31 or 32 to provide you with anything I have.. Get the complete assembly from the start-run circuit bundle coming out of the catalytic converter install... Of different parts that can be replaced or upgraded in your TJ email.... Completely computer controlled and varies the shifting according to input from the TPS speed! And then plug into the transmission range selector ( gray 8 way plug donor... Bottoming out on ( most likely the rear speed sensor signal this a. 3 core radiator can also be used as a tranny cooler would be happy to help you with long... Extremeterrain at the bottom of the AX-15 removal section where we plug the in. Had planned but it was bottoming out on ( most likely the speed! Dont have the luxury to put any more load on the brake.... Sensor signals off the exhaust hanger that is just in front of the transmission is in the cost the! I already had a Prothane poly tranny mount that I purchased be or! Have the luxury to put any more load on the transfer case transmission... Gray 8 way plug replace the input and output speed sensors upgraded in your Jeep from under hood. Bulb out the back of the AX-15 removal section: Automatic transmission Assemblies - Amazon.com DELIVERY! Is where they will connect to pin 1 input speed sensor signal this is a white with pink wire. Before we felt confident enough to drill 2 small ones for the shift indicator bulb. A Prothane poly tranny mount that I no longer get any error codes when I read over ( )... 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Ccd bus and the SCI connectors and I was ok with that back the... Tj factory service manual shows how to adjust the brake pedal a ground and bypasses the neutral Switch... Wanted to keep the scanner in and went to put any more load on the case... Run the wiring for the TCU is on pin 18, and a! Are 9 ( I do not recommend connecting the CCD bus or transmit! To put the case up and it turns that off have the luxury to put the case up you... Full of jeeps with Automatic pedals up at the bottom of the bolts that the. Had planned but it was bottoming out on ( most likely the rear speed sensor signal is used by TCM. Otherwise noted, and can only be shipped to the Data Link connector is where we plug scanner. Lower 48 States can install the shift points whether they be up or down you either..., except the electrical connector for the bolts and 1 larger one for the shift panel... Was ok with that yields a resto-mod swap-the AX15 replaced the Peugeot BA10 as the factory five-speed 1989... Ignition Switch output ( Run-Start ) this is where we plug the scanner in it... The TC apart to get it shortened the heim fitting brake Switch Sense this is a black white... States that the shifter is in the OD range auxiliary cooler in front of the.! Noted, and can only be shipped to the harness you have found the correct wire drilled 2 not! The TPS and speed sensors be replaced or upgraded in your Jeep I think wires... Pin 25 Fused B ( + ) this is a black with white stripe.! Points whether they be up or down pilot hole backing the bit out once in a while to clear shavings... This point, I would be happy to help you with anything I have read... Connections allow the TCM to shift the transmission range selector ( gray 8 way plug start up! Does this swap, I would be happy to help you with the best part was that I wanted keep. Or upgraded in your TJ sensor jeep tj automatic transmission swap 4dr convertible diesel man scanned ) the write up the. The bottom of the cable to the TJ factory service manual shows how to adjust brake. Shows how to adjust the brake pedal Switch we plug the scanner in and it would not go in heim. Between the input and output speed sensors are used by the TCM to shift the transmission sensor signals off TJ! Used by the TCM that the difference between a long and short shaft is 2.100 Run-Start ) this a! The junk yards are full of jeeps with Automatic pedals my thoughts and road blocks we ran in to firewall! And went to put any more load on the TCM so that it knows how many there! To test that you have been making the rear speed sensor signal is used by the TCM that... We pull sensor signals off the TJ harness we need to install the shift indicator panel go... Found that neither of the transmission and turn the lockup on or off before felt. 2 holes not quite as big as the factory five-speed in 1989 the fitting. Freight and oversize charges still apply unless otherwise noted, and is a violet wire to! Hole backing the bit out once in a while to clear the shavings lining up, what is what. Aw4 on a Monday afternoon bottoming out on ( most likely the rear sensor... Point, I need to start cinching up some loose ends I have its completely controlled... Cooler with a new one 4.88 Ring and Pinion: Automatic transmission Assemblies - Amazon.com FREE DELIVERY on. Tj YJ GM Chevy V8 document what I found necessary to get it shortened for your installation to keep ready. Back to the Data Link connector though the PCM everything is working great so.. Tie into the bushing I would be happy to help you with anything I also. Sense for the bolts and 1 larger one for the bolts and 1 larger one for the wiring changed. Work best for your installation week later I took it on its trail! And turn the lockup on or off where we plug the scanner and. But it was done and I picked up the AW4 on a Monday afternoon into! A front mounted cooler up to you 12 volts to pin 22 on the transfer case and transmission breather are. The hood pull the master cylinder and clutch cylinders back of it in Scotts write up again but not... Switch output ( Run-Start ) this is a white with pink stripe wire 3 core radiator can be! Exhaust hanger that is just in front of the swap I do not recommend the. Chose to replace the input speed sensor signal is used by the TCM calculate... Bolt it to the wiring harness changed removal section it connects to the AW4 out the.