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This will be the official build page for the MJ Motorhome. Progress pictures will be posted as work progresses. Before and After so check back through out the months ahead.

"MiNi BEAST" YEAH, THIS TRUCK FROM FL. FOR $100, SWAPPED IN AX-15, 231 T-CASE, FORD 8.8 WITH 4.10 POSI LOK,SPRING OVER, 3IN FRONT AWAITING 6.5IN COILS WITH RADIUS LONG ARM UPGRADE, SITS WITH CUSTOMS LOWER ARMS, WITH TUBE DOORS (GREAT FOT THOSE HOT DAYS) oVER SUMMER WORKING ON STROKER FOR A LITTLE HP {SMILIES_PATH}/jamminz.gif

My 87 MJ project is almost ready for inspection but my reverse lights are not working. I have tried many things for it to work including changing the bulbs, checked the wire for damages, and checked connections from the switch and at the sockets. I am lost. If someone could point me in a direction that would help I would really appreciate it.

So I think Google has officially figured me out. The algorithm works! I should probably be scared of that though. Recently, 70% or more of my suggested news reads have been either Jeep related or Comanche specific articles. Thought I'd share with you guys. https://www.hotcars.com/jeep-comanche-information-unknown-facts/amp/ https://www.wideopenroads.com/the-jeep-comanche-is-quickly-becoming-a-classic/ https://www.hotcars.com/jeep-comanche-facts/amp/

7/15/22 After about 16 years of wanting an MJ I finally own one. I had tried to buy one previously twice but it didn't work out. I've had XJs since before I got my license. I currently own 3 XJs, 1 TJ, and a willys CJ3A. All of which are projects of their own with their own problems lol.. But I have sizeable plans for this little MJ. She is an 87 2.5L 4spd manual. Mostly 4wd converted by PO. I am now in the process of cleaning up and reassembling everything that was taken apart. Currently I need to: Install the full exhaust Repair the exhaust manifold leak caused by a broken from stud - Planning to do EGR delete at this time. Reassemble the interior - new hardware for seatbelts, seat mounts, lower trim pieces, install new speedo cable, and put the dash together. I need to buy new carpeting, new seat mounts from a member on here, seat mounting nuts, misc exhaust parts. Before I reassemble the dash I am switching the gauge cluster from a dummy cluster to full cluster. I have already sourced a cluster and will be on the way soon.

Hello, my 1989 jeep Comanche long bed that I have, has been dealing with some drum issues going through inspection. I bought the jeep and and it already had what looked to be new shoes around 4 to 5mm of meat on both sides. The drums although I would say have seen better days. My question is, could I sand down the shoes really well and slap a new drum on?(its a Dana 35 rear too I should add). I have heard mixed things on throwing a new drum on somewhat used shoes. Should I give it a shot?

Hello everyone, I have 1989 jeep mj 4.0. I have been having issues with a draw on my jeep and finally did a draw test. Found my power latch relay is staying on far too long and is drawing about 1 amp at all times. What does this relay do and how do I fix this issue. THANKS!!!

Hello Everyone!!! I am officially new to the site, but have been browsing for quite some time as this is the best source of information for my new jeep project. I few months back I was lucky enough to pick up an 88 MJ in good shape. it has the 2.5L, so it is kind of a dog but I'm not trying to race anyone or do any rock crawling at the moment. However, I am in the process of installing a 4.5 Rusty's long arm kit, and ran into an issue late into the project last night; I set the lower arms to right specializations (35 3/8" eye to eye only about 3 full rotations of the joint) and mounted them from the cross-member to the axle, but the axle seems too far forward. After calling it a night I have been doing some research; and I know my geometry on the front axle is all jacked up currently, but could my lower arms be too long? I am pretty sure my manual transmission is an AX5 (since it is the 2.5L), but I recall that the trans cross-member is in different locations of about 2" between the AX15 and the Peugeot(87-89???). The only years that Rusty's notes a difference is 87-89 due to the Peugeot mounting a couple inches forward, but does the AX5 and the AX15 mount at the same location? Thanks!

Not sure if this has already been a topic here, but I stumbled onto this YouTube channel the other day, The Fast Lane Truck. It is a father and son who do different truck mods and trail tests. They have a whole mini series, 7 episodes, dedicated to an '89 Comanche Pioneer. It is a quick watch, each episode is only 20ish minutes long. It's pretty cool to watch them pit the Comanche against a brand new Gladiator on the MOAB trails. I felt obligated to share this with everyone. Enjoy!

1989 Jeep Comanche 4.0L in-line 6, Manual 4wd, rear axle d35 3.08 Located in Wisconsin Still drives but for now only in 4wd Exterior: purple, Interior: Dark red w/ bench, Floor shift

fixin to drive the jeep through yet another snowman. started my own tradition building a snowman so i can drive it over. curbs be rough yo! city life. stay tuned later this week for video.

Hey everyone my name is tyler, I am new to the forums and am in the process of building up my 1990 jeep comanche 4x4. This is my second comanche and I'm building it as a daily driver that will get me through the harsh canadian winters and see some moderate 4x4ing as well as shuttling mountain bikes where ever i ride.

So, has anyone else tried to combine a dodge frame and a comanche? If so, shoot some pics! Here is my attempt. I just wanted a small truck with a 3/4 ton capacity. I'm gonna call it Truck Norris.

88 MJ 2.5 Need help. Just recently got done installing a locker in the rear axle. When I Got the truck off of the lift, I immediately noticed that my brake lights, turn signals and gauge cluster lights all had stopped working. They worked just fine before hand. My hazards don’t work. Took a peek at the fuses and they’re fine.

I purchased this MJ in October of 2015.. Got it ready for the road and inspection and parked it in November. I will be away from December until April so nothing was being done except lots of comanche club reading! Pictures from the kijiji ad: It's about time to actually start working on the jeep so I will try and keep this build page updated. Mostly with pictures. I live on the Island of Newfoundland, Canada. Saw the ad posting for the Mj in PEI (Prince Edward Island), so that means two ferries and a small road trip to go check it out. Loaded up in a Ford windstar mini van and off I went. Looked at the Jeep, hooked it up to a set of tow dollies, unhooked the rear driveshaft (which to my surprise came off easy) and headed home. Got it home and really sized it up, more rust than I initially thought. So this is going to be a faily big project that I got to "sleep on" all winter. I did however fix the floor rust and few other things that it would need to be inspected and registered. I'm the second owner of this Jeep, I bought it off the original owner who picked it up in '89. Nice older gentleman who said the truck as been sitting in his shop for the past couple years. It only has 155,000kms on it. I was expecting it to have some maintenance needed. I didn't get pictures of the actual nest in the intake box.. One thing I did learn from here is to pull your carpets.. I was kind of nervous about it, seeing as the Jeep came from a Island on the east coast. I shouldn't have been too shocked but I was kind of taken back when I seen the carpet was half the floor Passenger side wasn't as bad Never having done body work before I was kind of discouraged but in the end I think the floor turned out ok. Patch work done and passenger side sealed I did put down some rubber water seal but I'm not too sure if I like it. It doesn't stick as good as I was hoping, but it was colder when I installed it. Looking underneath it was certain rust was going to be my biggest issue with this build I'm planning on a front and rear axle swap, XJ front and the Explorer 8.8 so I'm not too concerned with the axle rust. The frame and body are in overall decent condition. It looks as though the bottom of the doors and the box have been redone before. I did get it inspected, insured and registered before I parked it for the winter. First actual drive.. Can see where the fender meets the door area that it doesn't look factory/lined up properly. It will most likely be cut out for rock rails anyway.

Future cummins overland build. This is the day I got it home, rust free from virginia. Follow me on instagram @mulletman.mj.

Looking for a comanche , auto trans and short bed will travel for right one, located at 85040

Personal Introduction: My name is Britton and I am an addict...jk but seriously though haha. Career wise I am a mechanical engineer but I prefer to consider myself a jack of many trades and a master of none. I am constantly tinkering on something, working any number of projects, and tossing ideas around in my head constantly (both a blessing a curse). Anyways, I've been into Jeeps since I could drive and this is officially the 4th Jeep I have owned. 1999 2 door XJ 5 speed, 4.0L, 3.5" lift, 265/75/16 BFG ATs on TJ Rubicon wheels, overhead console, cruise control. She was a street queen and truly hated to see it go. Especially since it was my first car with a lot of memories. 1999 XJ 4 door, 4.5" lift, 33x12.5x15 Federal MTs, doorless mod, bedliner floors and headliner. Nothing special made for the woods but not a true beater and I still took care of it Sold both and bought a stock 2005 TJ/LJ Unlimited 6 speed with 78,000 miles. Installed 2.5" suspension lift, 1.25" body lift, 305/70/17 Goodyear MTR/K on JK Moab wheels. Kept it otherwise stock and clean because I started to venture away from tearing things up off-road and prefer mild trail riding and camping now. Then I stumbled into this project...1989 Jeep Comanche MJ. Drivetrain and dash were swapped but not finished and virtually rust free with 4/5 star floor boards compared to a lot of other Comanches. The back story: December 2018: Me: "Dude look at this Comanche! Its half way converted, you think I should buy it?" Friend: "Do it! You always said you wanted to build one. It'll be fun." It is not fun. Well sometimes it was but never again will I take on a project like this. It might just be the straw that broke the camels back. Still undecided... I have a bad habit of getting started on a task and becoming completely focused on completing it then forgetting to take before and after pictures. I usually remember about halfway through that I should've taken before pictures so I apologize in advance and I'll try to explain each picture/process in detail to give the full picture. As bought condition 12/1/18 (Previous owners shop, but wish it was mine): Build Plans: -Full 2000 XJ swap interior, exterior, and drivetrain -Dual gas tanks ~40+ gallons (TJ gas tank behind axle and Dakota gas tank in stock location) -Metallic silver paint -Ford 8.8 rear axle -4.10 gears -Spring over rear -4.5" Rubicon Express front coils (possible spacer to level out) -Rubicon Express control arm drop brackets -JKS Quick Diconnects -ZJ V8 tie rod and draglink -Ten Factory Dana 30 axle seals -JL Rubicon wheels with 285/75/17 BFG KO3s -1.5" wheel spacer adapters (5x4.5 to 5x5) -Rancho 9000XL adjustable shocks -WJ control arms -Raptor Liner or LineX bedliner -Custom bed rack -Custom bed rails Teaser shot of the current status as of 9/29/19: I will be posting a full start to finish timeline/explanation/how-to of the build in the days to come to walk everyone through the long process this has been. So stay tuned for that. As of right now (10/10/19) it is currently my daily driver while the LJ is being worked on. Here is a list of things I still need to do on the MJ to make it "100% finished": -Bedliner (probably Raptor Liner) -Restore tailights (maybe LED bulb swap) -Modify and install overhead console (shorten, graft, LED bulbs, and determining mounting) -Reupholster visors to match new headliner, LED bulbs, and install (matching material was provided with it) -Install tailgate (at sand blasting 10/8/19) -Install Dirtbound Manta Ray rear bumper (ordered on 10/7/19) -Replace clock spring (possible WJ steering wheel swap at the same time) -Mount/Install emergency brakes with 8.8 adapter clevis -Fender flares (Very undecided on this. Napier or Notch or just stock trimmed with rubber edging) -Front bumper (JCR Crusader or Dirtbound Mojave. Really like the thought of a hidden winch front bumper and hope these could be modified for that) -Gear swap to 4.10 (front Dana 30 is 3.55 and rear 8.8 is 4.10 so 2WD until then)

I am new to the her community and decided to start my first project, a ‘90 MJ. I have spent numerous hours trying to figure out why the driver side taillights are working but the passenger side isn’t. The previous owner butchered up the whole rear lighting harness. So I grabbed one off of another MJ and spliced them together hoping it would fix the issue. It did not change anything. I checked fuses and they are fine. Checked my ground wire on the rear driver side and it’s okay. Any other ideas to look into? Any information helps.

So first, lemme preface this by saying that i have always wanted to build a 97+ converted MJ, in fact i have spent a few years researching the swap and i finally had things lined up to do the swap, including 2001 XJ and an 89 MJ... But life happened and i had to relocated from Florida to Kansas. I had spent several months using a website the searches all of craigslist looking for something interesting to pick up when i came across this. It was 1,000 miles away in New Mexico, made the 26 hour drive in 30. A built Comanche that had been converted to the 99 XJ drivetrain with a 2001 XJ Limited interior. Literally my dream swap. I believe that the 99' is is the best year of the 4.0. So these are the specs the day i bought her: ****Motor**** - Freshly rebuilt 99 4.0 bore over .30 - Bored throttle body - High Volume Melling oil pump - Eddlebrock duel outlet header - High flow intake manifold - Brown Dog motor mounts - IranMan4x4 Brackets ****Drivetrain**** -AX15 5 speed with a new clutch - Np231 transfer case with Chevy HD widechain and gears - 6 pinion planetary ****Suspension**** - 6.5 inch lift - SOA in rear - Spartan lockers - 3.55 gears - 29 spline shafts - Terra Flex high steer - Rubicon Express lower arms - Adjustable Rough Country upper arms - Rubicon Express double sheer track bar - BDS Shocks ****Exterior**** - Loans Metal Products front bumper - Warn 9.5ti winch - 4 LED Pod lights - Bushwacker fender flares ****Interior**** - Interior from a 1999 XJ limited - Heated leather power adjustable seats from a 2001 XJ - Wood grain interior - Correct two window switch installed Some pictures from the day i bought her: Things I have done since having her: - Fox 2.0 shocks up front - Fox 2.0 Steering stabilizer - Rebuilt the winch by replacing the solenoids and cleaning and re-greasing the gears - Reqired the LED lights so they are not a fire hazard and work with the factory fog light switch - Installed a WJ Overland wooden steering wheel with radio controls - Installed IronMan4x4 steering box brace with sector shaft support - IronMan4x4 Steering box bracket / spacer - Rough Country Floor mats - Spooled up some synthetic winch line Here are some pictures of what i have done since having her: And this is what I am currently in the process of doing (I have the parts ready to install): - Installing my OR-Fab bumper and warn M8000-S winch with Rigid LED lights installed on the bumper (from my old 99 XJ) - Creating a new headboard with overhead speakers and the full length XJ limited overhead console - Installing the stock XJ Limited tweeters - Getting the steering wheel radio controls to work with a WJ clock spring Some of my long term plans: - Rear mounted winch - X-Max fender flares - Two tone gloss black and Rhino Line matte black - 4 link suspension - 4.7 stroker - Dana 44 front and rear - Creating a logic board to make my steering wheel radio controls be able to select between front or rear winch, then be able to winch out and in Thank you very much for viewing!! I hope it was worth your time and id love to hear some thoughts and ideas!

Hello everyone! I'm new here. I'm an owner of a 88 Jeep Comanche Pioneer with 73k miles. I inherited this vehicle from my late father who spent a lot of time getting the vehicle roadworthy again. I'm a little mechanically inclined, so I'm working on it bit by bit and learning as I go, since I've received this vehicle, I've replaced the leaking fuel injectors with better ones, I think avoiding a fire while driving it is a priority lol. My next thing to do is replacing the clutch master cylinder since I realized it's leaking on the fuse box! Luckily the damage wasn't to bad, I just cleaned it and changed 2 damaged fuses, works just fine now. I will be posting my progress with repairs over time. More pictures to come soon!

I was asked to start a build thread on a 1988 comanche /98 cherokee update. So here goes. I don't find that the swap is very difficult as both trucks are based off the same unibody but with 10 years difference there are subtle changes. The old mj was renix era and used a GM steering column shift included. The xj uses obd2 and floor shift. The hole through the firewall for column will have to be relocated close to brake booster. Measure and holesaw this. Not real big deal. The hvac box is pretty direct. Redrill the lower bolt by fan motor and slightly elongate 2 directly behind motor. The old mj steering column mount just dropped down from firewall. Drill out all spotwelds and toss it. The newer xj mount is a big aluminum piece that also bolts to left kick panel. These will need to be redrilled and the old mj ebrake bracket and studs should be removed also. The mj door strikers will need to be replaced with xj parts. Again some redrilling with careful measurements should do it. I’ve tried to upload pics but it’s super slow. Follow me on IG @88_comanche_chief. They are all there

I’m trying to swap a 1992 XJ gauge cluster out a “country” package, into my 1988 MJ Pioneer. I can’t seem t find a proper wiring diagram for either of the models gauge cluster plugs and need some help. I have to use the XJ clusters plug so I need to splice it into the MJs wiring, any help would be greatly appreciated. Thanks

Finally joined the Comanche club a couple months ago. This is a 1988 4.0 5-speed 4x4 with 180k on the odo. Exactly, what I had been searching for... a shortbed, 4wd, manual with a 4.0. Currently, I am wrestling with some electrical gremlins and goblins. Learning Renix has been interesting, to say the least. Not on the road just yet but, once I am finished sorting out the wiring it should be good to go.

Looking for a drivers side switch panel for windows and locks for a MJ/two door Cherokee part #55002135. Updated and Edited 9/8/2018: I purchase the seal from Dzimm and I am still looking to see if anyone is willing to sell the driver's side window and door lock switch panel to me.