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  1. Hi all! I wanted to start a build thread for the 4.0 stroker build that I've started to get input and advice as I'm going along. I'm learning as I go and it would make me feel a lot more comfortable if people with more experience looked through what I'm doin. My intended use for the truck is a dd, something with more power and just to make it really really cool. So getting into it.... Starting with a 1989 MJ with a tired 4.0 with a blown head gasket and high oil pressure. 5 speed to a ford 8.8 in back. The motor is completely ready to come out at the moment, gonna pull it in a few
  2. Hello I'd like to introduce my newly acquired 1988 Comanche, some of you might recognize her , I had already purchased her once a few years ago and then sold it and regretted it and now I have bought her back for a whopping 900$. She runs and drives beautifully , starter seems sluggish thought and she had non functioning hazards and stop lights but that has been fixed. Plans for this is to just get her running even better , going through all of cruisers tips , and also get her repainted and swap the front end to chrome and just drive and enjoy it. This one is equipped with the 4.0 , 5 s
  3. 1988 Jeep Comanche Pioneer 4.0 auto 4x4 long bed 244,500 miles. I’ve been driving it daily and rescued it from a guy that never did anything with it. It fired right up after sitting for over a year and the body and unibody are in great shape. I couldn’t pass it up. It has a high pinion Dana 30 front, Dana 35 rear, 231, aw4
  4. Hey guys I’m new to the forum and I’m not sure I understand how to use it I tried looking this up but the first like 10 pages don’t show what I’m looking for and I got too lazy to keep scrolling so apologize for that. i picked up a 89 Comanche about a month ago it’s got the 4.0 with the ax15 it’s 2 wheel drive and so far I’ve picked up a Dana 30 at a local junk yard I’m wanting to know what else I will need I’m having trouble finding an AX15 that’s 4x4 or will my transmission work? I’ve found a 231 transfer case and I know I’ll need the linkage and drive shaft? Am I missing anything or is t
  5. Picked this 2002 grand Cherokee up over a month ago to replace my wife’s totaled Compass. I’m just planing on fixing the little things that are wrong with it and update it with a more modern radio and just enjoy it . It’s at 166k. It’s a limited with quadradrive 4x4. It has the front and rear limited slips , skid plates , front and rear tow hooks , and my favorite part is that’s it’s a 4.0 .
  6. Hey all, i'm the proud new owner of this '89 MJ. It came with some issues as most older jeeps do. First order of business, clean the throttle body and iac. Trying to eliminate the vacuum leak, which is massive. Kicking out a loud whoosh when i step on the gas pedal, limiting my top speed to 35 mph. PO installed an electric fan to help with overheating, seems to work well, keeping temps at 220 F if i can trust the thermostat. So i'll be under the hood for a while this week. The forum articles on vacuum leaks are helpful. Also i'll be looking for a new flexplate, mine is cra
  7. Anyone know where I can get a egr valve I bought one off rock auto it was wrong. No napa, O Reilly's, auto zone, napa....... I can't find one. Please help
  8. Please help, I've got engine oil in clutch reservoir (?) I recently became a proud owner of a 4WD 89 Comanche 4.0 paired to a Peugeot transmission, but the previous owner lost the clutch while delivering it to my house, making clutch-less shifts. We added fluid to the master cylinder reservoir, pumped the clutch, and the fluid turned black. Now the clutch has some pressure, but quickly loses it as it drips from where the rear main seal would be. The seller mentioned that the rear-main seal was most likely bad, and it explained the oil leak that I saw when I test drove it. The master cylin
  9. Hello all, I’m new to the Comanche cluband am building my first MJ. I have a 98 XJ that I wheeled and drove since 2003. I recently totaled it and picked up a 1986 MJ for $600. Replacing the floor pan now, I plan on doing a Rusty’s long arm as well as swap the 4.0 and AW4 from the XJ. The MJ had a 2.8 with a manual, not sure if I need to cut the cross member mounts off the unibody for clearance with the trans or fitment with the long arm crossmember. Has anybody ran into this before on one of these awesome Jeeps? I really have been getting a lot out of all the experience posted on this forum.
  10. Finally posting my truck after about a year and a half of ownership, I purchased 2 Comanches from a guy in Woodstock, Illinois. One 86 red 2.5, 2wd, dana 35 long bed and one 86 silver 2.8, manual, 4wd, long bed. All I knew about the silver truck was that it supposedly had a wiring/ground issue and was taken apart and prepared to be parted out. They were both purchased for $500, as well as an additional $150 for a stock pile of extra parts. Both trucks had rust on rockers/bed ect., but at 500 for the pair I couldn't say no. They mark the 4th and 5th Jeeps that I've owned at 20 years old, and
  11. 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.
  12. Just bought an 87 short bed, 4.0 2 WD a few months ago. Originally white and sold new in CA. Its been repainted factory red sometime in its life and has the original tan vinyl bench. Bought it from a young guy in K.C. and had it shipped to Ohio. I think it was parked for awhile because the original 5 spd tranny was bad. The guy I bought it from swapped in an AX15 with help from his dad. He also put in a gauge cluster with the tach. I wanted a 2WD because I'm only going to drive it in fair weather. Pretty sure it only has 102k on it. Previously I owned a 91 Cherokee Laredo and drove it daily fo
  13. Hey everybody, my name is Dan, and this is my first post. I've been lurking a while now and I have to say, this is one of the best forums I've ever come across. The vast amounts of information and inspiration are very helpful to new owners. And there is a shocking abscence of bickering, oversensitivity and internet tough guys that seem all too common on other forums. With that said, it's about damn time to start talkn bout Comanches... I've had my eye on getting a Comanche for a couple years. Started seriously looking last January, had a few slip through my fingers, but finally got one in
  14. So last July I bought a house and as an incentive he was going to include his broken down 89 Comanche.(I was going to buy it regardless but I like small trucks always like the 4.0) Anyways what I got is a 89 2WD 4.0 Manual truck. I would like to get it up and running first and then maybe do a 4WD conversion and keep it a stick. I might do a slight 2-4 inch raise seeing as it'll be a trail/dump runner so need to keep it street legal. I have a little automotive experience but not much in the ways of axels/transmissions and such. I did it get where I can drive it. Had to replace bad starter and
  15. So I'm trying to find out why my truck keeps dying. I jumped it off, let the vehicles run for several minutes, took the jumper cables off, and it runs for about a minute, then dies. I also noticed its idling weird. it will idle high, then get really low, then sound like someone is tapping the gas pedal. It will die soon after that. The alternator is brand new, I tried 3 different batteries (can't find my multimeter at the moment to make sure they are good, they are all about 5 years old). So I think I have it narrowed down to the battery, or a connection to the alternator. In the morning I am
  16. Hi Everyone, This is my 1st post. I picked up this Comanche a little over a month ago(My first!). It is a 88 2wd/lwb Pioneer 4.0/Aw4. 222k on the clock. The original owner purchased it in Missouri. Lived there for a few years before moving to Florida. Then recently made its way to Michigan to his granddaughter here. When once she realized the amount of work needed. She sold it to the shop she took it too. And I purchased it from them. It still has most of it's original window sticker. it is 100% rust free. It has been repainted at some point. The AW4 was rebuilt about 18k miles ago. Th
  17. I have a barebones 88 MJ - 2wd, 2.5L, 4speed, that got one option... power steering. After 204K the engine is done, I'm going to swap the entire driveline from a 1998 Cherokee Classic. Thanks to Alexia's 97-98 swap project for insparation! I'll post pictures along the way and am interested in your tips and feed back. As you can see Cherro was in a front end accident, but the engine seems ok accept for the idler pully etc......
  18. I've had my 87 MJ for a little over 2 years. What was going to be a "simple" upgrade of the rear axle to a Dana 44 (to get me to the Metric Tonne place) has gone totally out of control. The rear is now a Dana 60 and the front a Dana 44. Both geared to 4.56 with a four-link in the front, Hell Creek springs in the rear. The lift is designed for me to be able to run 35s. The original 4.0 l-6 has about 275,000 miles on it and the tranny is the much-loathed 5-speed. I also have an XJ with around the same miles, so I am a fan of the 4.0 I-6 motor. I have found an engine rebuilder locally with
  19. https://muncie.craigslist.org/wan/5395928811.html
  20. Okay so I'm going out on a limb on this project. I know its been done in YJ's and TJ's but ive never seen them in an MJ (or XJ for that matter). What I'm wanting to do is swap a 5.2L Magnum out of a 1999 Dodge Durango into my 1991 Jeep Comanche with a 4.0L, AX15, and NP231. I have the chance to buy this donor for $500. Its a 1999 Dodge Durango with a 5.2L, 44RE, and NP242(if i had to guess). As far as getting this motor to fit, that shouldnt be a problem, but the wiring harness and computer will be a different story. Is there anybody out there that can give a little advice on this swap?
  21. So for about 3 months now Ive had a ford 8.8 ready to swap in including a new 5.5 inch lift. :doh:I have everything to do the lift and swap and i know how to do it, but i haven't yet because its different gearing then my dana 30 upfront right now and i need a drivable car and 4wd here in the upcoming colder months. But now that i have this 1995 4wd cherokee with a non CAD dana 30, I'm going to pull it out and have it re geared and put that in my comanche. I'm not going to build it up yet because i don't have the money because i started school and can't work as much, but i just want to replace
  22. i got my pats vehicle. I got a ax15. I'm taking that out today. I'm going to put all new seals in it and clean it up and then I'm going to swap it in. I need to know all the stuff thats needed for this swap. I got the cross member, shifter, case, and linkage. I have no idea what needs to be changed or bought for this. Thanks all!
  23. I'm interested in buying a project Comanche Jeep. I'm looking to put Dana 60 axles in it and a 4.0L stroker and fresh paint. I have big plans. I need a solid platform. To make my life easier I'd like to start off with a 4.0 engine so I have the wiring harness already and whatnot. I'd like to re-use the stock AX-15 transmission I would like it to be a short bed and if possible it can come factory with 4wd. Also no rust would be a plus. Text me at (631) 806-1839 for any leads, I'm located in Western New York. I don't mind driving within reason to pick one up.
  24. Just purchased my second Comanche, 91 Eliminator shortbed 4x4 4.0 I6 HO, Ax15, and the metric ton package (dana 44!). Bought it for $1000 runs great only 168k on it and all stock. Problem is floorboards and rockers are gone. (Literally holes you can stick your leg through) I have replacements for both those but came across a rotten frame. Leaf spring and shackles are fine just drivers side is rotted up to the brake lines and a pretty decent size hole. Has anyone repaired a unibody? I know you can strengthen them with unibody supports but anyone do something different?
  25. I'm looking to buy a fairly clean 2wd comanche, must have 4.0l motor and automatic transmission. Please contact me with any info. thanks
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