comanchebuilder21 Posted January 6, 2014 Share Posted January 6, 2014 I have a 89 Comanche an I got a free Jeep trans from a friend but the shaft that slides into pilot bearing.in back of engine is 3/4 instead of the 1/2 anyone got a part number for the 3/4 bearing or link? Link to comment Share on other sites More sharing options...
Megadan Posted January 6, 2014 Share Posted January 6, 2014 Sounds like you got an AX-15 and it used to have the Peugeot. You will need Pilot Bushing from a early 1970's 304ci CJ5/6.Timken or National Part # PB77HD. I just did an AX-15 swap into my 1988, so I am pretty familiar with everything. Link to comment Share on other sites More sharing options...
comanchebuilder21 Posted January 7, 2014 Author Share Posted January 7, 2014 Is there any other parts ill need? An thnx for the help Link to comment Share on other sites More sharing options...
Megadan Posted January 7, 2014 Share Posted January 7, 2014 It depends on what you got with that transmission. If you are going from a BA-10/5 to the AX-15 then you are going to need a crossmember from an AX-15 equipped MJ or XJ. You will need to have a some of the linkage/brackets for the transfer case for the AX-15 if you have a 4x4. If you do have a 4x4, if you did not get a trasnfer-case with the trans you will either need to find one with a 23 spline input, or swap the 21 spline in your factory one out for a 23 spline. Also, you will most likely have to find a solution for the Central Axle Disconnect, as the factory system uses a valve on the transfercase to switch between 4 different vacuum lines to engage the front axle, unless you use your old transfer case, or the one that came with the transmission also came from a truck with the vacuum system.Depending on if the AX-15 you have is an external or internal slave cylinder you will potentially need to work that out as well. Do a search on AX-15 swap, both here and on google (XJ forums cover it in a lot more detail than anything I have found here) and you will find all of this information in greater detail. Something I ran into that wasn't easily found with searching is that you will also need is a Bracket for the transmission mount, OE part number-5200 3927. It's not a very easy part to find as it was specific fo the MJ and XJ up to 1995. I managed to find a place that could get a new one for me through a second party. This is the website I ended up going through. http://www.trademotion.com/partlocator/index.cfm?siteid=213948 Give them a call before you order and ask them over the phone about it, but order it through the website (it's a lot cheaper). Shipped to my door it ended up being $78, but it took about a week and a half because they had to order it through another company and then ship it to me. Link to comment Share on other sites More sharing options...
Eagle Posted January 7, 2014 Share Posted January 7, 2014 For starters ... is this a 4-cylinder or 6-cylinder MJ? And how many cylinders did the donor vehicle have? Link to comment Share on other sites More sharing options...
Megadan Posted January 7, 2014 Share Posted January 7, 2014 ^also a good question that I never considered asking. Link to comment Share on other sites More sharing options...
comanchebuilder21 Posted January 8, 2014 Author Share Posted January 8, 2014 Both 6 cylinders Link to comment Share on other sites More sharing options...
Megadan Posted January 8, 2014 Share Posted January 8, 2014 Is the new transmission an internal or external slave cylinder setup? If it's an internal you can use your old hydraulic TO bearing setup, but I would definitely put in a new one. I have one from the clutch kit I ordered. It's a brand new SACHS unit, and I will sell it stupidly cheap just to see it go to use lol. Link to comment Share on other sites More sharing options...
MancheKid86 Posted January 8, 2014 Share Posted January 8, 2014 the correct bushing is PB74, for a 1972-1975 cj5 Link to comment Share on other sites More sharing options...
comanchebuilder21 Posted January 8, 2014 Author Share Posted January 8, 2014 How can I tell internal / external? I'm really bad with transmissions Link to comment Share on other sites More sharing options...
MancheKid86 Posted January 8, 2014 Share Posted January 8, 2014 external has an external slave cyl on the left hand side, internal has the slave cyl on the inside, and the hydraulic lines go through the right side of the bellhousing Link to comment Share on other sites More sharing options...
comanchebuilder21 Posted January 9, 2014 Author Share Posted January 9, 2014 Its external Link to comment Share on other sites More sharing options...
Megadan Posted January 9, 2014 Share Posted January 9, 2014 the correct bushing is PB74, for a 1972-1975 cj5 Every parts store that lists the pilot bushing for the CJ5 also shows it as PB77HD. PB74 is listed as the pilot bushing for the 67-70 3.8L I-6 from the Jeep Wagoneer and J series. Who knows though, maybe it will work. Link to comment Share on other sites More sharing options...
Megadan Posted January 9, 2014 Share Posted January 9, 2014 Its external Being external you will have to either make a line for the slave to clutch master (probably the cheapest), buy a pre-made one from Novak for about $94, or buy a pre-bled complete master and slave assembly with line for about $140ish. Link to comment Share on other sites More sharing options...
comanchebuilder21 Posted January 10, 2014 Author Share Posted January 10, 2014 OK thnx so much for the help Link to comment Share on other sites More sharing options...
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