onlyinajeep726

I was thinking the same thing when I saw that! haha.

They killed it...

Only drawback I see is the 2.8...

Found this tonight while searching the list of Craig for Jeep MJ/XJ parts. Thought I'd share for anyone interested. http://raleigh.craigslist.org/cto/3896469673.html 1986 Jeep Comanche 4x4 - $1800 (Henderson, NC) NICE OLD TRUCK. RUNS GOOD. NEW BATTERY. NEEDS A LITTLE WORK. NO RUST. V6 (2.8), AUTO, PW& PL, AIR. FIRST YEAR OF COMANCHE PICKUP. ALL ORIGINAL FOR MOST PART. NO LIFTS OR ANY SUSPENSION MODS. $1800.00 OBO. CALL MARTY AT 919-339-6766. NO EMAILS PLEASE. I WILL NOT RESPOND Location: Henderson, NC it's NOT ok to contact this poster with services or other commercial interests Posting ID: 3896469673 Posted: 2013-06-26, 1:11PM EDT Updated: 2013-06-30, 8:39PM EDT email to a friend

Gotcha. As far as that pilot bushing is concerned, I guess this is the correct part: Pilot Bushing

Yea, really. D35's are ok for stock, DDing but for offroading, I'd be scared.

Ok, but other than that, does that look like a complete list of stuff I'll need? I want to get the most complete list so I can post it for others to go by if they're doing a similar swap.

They trussed and 4-linked a D35? :shake:

Thought so... Ok, so far on the list of parts I need to obtain: - external slave for '94+ AX-15 - friction plate and clutch - pilot bushing from '74 Jeep CJ with the 304 engine - Renix flywheel from '87 - '90 4.0L MJ/XJ - 23 spline NP231 transfer case Parts I already have: - '96 AX-15 - external slave 4.0L bellhousing - used shift fork and used throwout bearing - appropriate crossmember - rubber transmission mount Anything else needed that I'm missing?

Am I correct to assume that the flywheel from my 2.5/AX-4 is non compatible with the 4.0/AX-15? That would be too easy and convenient, wouldn't it?

I have one of each. My XJ is built and offroaded, but mainly my DD. I would never trash it. I can still enjoy rock crawling but I know my boundaries in it. My MJ on the other hand, will remain stock other than a 4.0L/AX-15 swap. It will become my new DD and keep up to look a nice as I can possibly make it (if the wife doesn't whine too much lol). I don't think XJs should be used strictly as a parts bin for an MJ, though. I will say this much, however, one of the reasons I sought out an MJ over a Toyota or Nissan pickup, besides MJs just being kickass, is that I can find most parts I need from an XJ in the scrap yard. At least everything from the front seats on forward. :yes:

I failed to mention that I have the crossmember in possession from the same '96 XJ, as well as the rubber transmission mount and some other various pieces the seller supplied. I did not know that he flywheel had to be from a Renix, but that makes sense now for the reason given. Also, why does the pilot bushing have to be from a '74 CJ with the 304? I thought that could come from a Renix XJ/MJ that had the AX-15 from factory? Or does this have to do with the fact that the AX-15 I will be using is an external slave? Also, jumping the NSS plug is what I think I was thinking about to "trick" the computer. I was reading threads a while back talking about swapping out an AW-4 in favor of the AX-15 and that was mentioned. There's so much information out there on the interwebz. Anyway, keep the information rolling in. I'm going to make a list of components that I'll need to order for this. I think as far as the engine goes, once I make the modifications to the firewall, hood and radiator support, the wiring should be easy enough to get back together. Afterall, I'll have the donor right next to my MJ. Edit: Geonovast, I just saw your post on another thread of mine that I made when I bought this AX-15. If I had seen it before, I wouldn't have asked some of the same questions twice haha. But either way, thank you and mvusse for the great information thus far.

Wanna bet? According to my Renix MJ diagram, the reverse light circuit is fed by a 7.5 amp TRANS fuse. So ParadiseMJ and I are wrong? I just wouldn't have thought there would be a TRANS fuse used on a stick shift Jeep. Just like ParadiseMJ said, I would have thought the backup light switch on a manual would be just that, a switch. But I know you're far more knowledgeable about Jeeps than I am, so I surrender haha.

Sorry, almost everyone I've told my plans to for the old girl have told me "you're doing the impossible." I shouldn't have made an assumption and I am sorry. To answer your question though, the engine is a remanned Renix that will come from a '90 XJ that is currently mated to an automatic. I will also be pulling the computer, wiring harness and dash from said donor. I will have to trick the computer into thinking that the AW4 is still there by jumping some pins in that harness. Other than that, I should be okay, right?

No, my '86 MJ. And yes, I've been warned of the difficulties ahead when trying to stuff the 4.0 into a pre-'87 XJ/MJ lol. That can be overcome. I just don't know jack about transmissions.

Also, while we're on the subject, I need to know what other parts I need for my AX-15. I have the transmission itself, the bellhousing, a used external slave (which I'll likely just buy a new one), a used shift fork and used throwout bearing attached. Correct me if I'm wrong, in addition to these parts, I need a flywheel, friction plate, clutch and pilot bushing (should come together in a kit if bought new, right?) and what else? I'm really new to the manual transmission world. I will be swapping out a 2.5L/AX-4 combo for a 4.0L/AX-15 combo in the MJ so I have to piece it all together. Just want to make sure I have everything I need to make this the most successful swap possible.

What Jeeps can I pull a 231 transfer case from for a successful mate to an AX-15 transmission? (Note: the AX-15 in possession is from a '96 XJ) In my research, I have found out that the AX-15 has a 23 spline output shaft and the 231 needed has to have a short nosed 23 spline input. Is this correct? Gurus, please bestow some information upon this noob. :bowdown:

This information does not apply to those with a manual transmission.

Going from "E" on the gauge isn't reliable enough to determine a true empty tank. You'll always have some in the tank when filling up, even from "E". 6 gallons worth? That I don't know for sure. I've heard multiple times that the low fuel light comes on when you have ~2 gallons left. If I'm not mistaken, it says that in the owner's manual also.

:agree:

The '86s were only long beds. Standard 16 gal tank with 23.5 gal optional. There should be three straps holding up the tank, the first strap (nearest to the front of the Jeep) has a "skid plate" if you can call it that. It's made of plastic and is bolted to the first strap. The engraved plate may or may not still be there. Mine was, so that's how I know its true capacity.

Maybe it's just me, but I fail to see any problem. If the truck runs fine and the alternator is putting out 12V, then what's wrong?

Do the reverse lights come on in any other gear? Also, to answer your question about the speedometer going backwards in reverse... yes, all the pre-91's do that since it's a cable driven speedometer.

That's a possibility given these trucks have parts in them from factory with no rhyme and no reason lol.