jimoshel Posted December 27, 2010 Share Posted December 27, 2010 Seems there is some discussion and disagreement as to whether the 231 transfer case has a true neutral, that is the front and rear drive shafts are separate from each other. The following may not prove anything but it gave me something to do. First obtain a 231. This one happens to have a AX15 attached to it. Image Not Found Secure it to a firm, stable surface, clamping one drive shaft down so it cannot turn. Insure transfer case is in neutral Image Not Found Now, using a drive shaft turning tool attached to the other drive shaft, try to turn that sucker. Image Not Found Those suckers are locked together. Image Not Found Hope ya'all enjoyed reading this as much as I enjoyed doing it. Jim Link to comment Share on other sites More sharing options...
COMJNUT Posted December 28, 2010 Share Posted December 28, 2010 But...when it is in 2wd, the front and rear are separate. I tried it on mine while the front axle was disengaged from the drive shaft. I'll have to do the neutral thing myself soon...just to believe. Link to comment Share on other sites More sharing options...
mvusse Posted December 28, 2010 Share Posted December 28, 2010 95 and later (which does not affect an MJ unless one was swapped in) do have a true neutral. Link to comment Share on other sites More sharing options...
jimoshel Posted December 28, 2010 Author Share Posted December 28, 2010 I should have mentioned that the unit I was foolin with came out of a 1988XJ. However according to the ID stamping it's a 1990 unit. I think one of the biggest sources of disagreement and confusion on what's what is due to the fact that our trucks are over 20 years old and very few of us are the original owners. Who really knows what was done to or swapped in them before they came into our possession? I still have it set up. Going out tomorrow and try what COMJNUT mentioned. Go thru all the gears and see what happens. Should have done it today but never thought about it. Link to comment Share on other sites More sharing options...
whowey Posted December 28, 2010 Share Posted December 28, 2010 I love the XJ wrecker set-up.... :rotf: Link to comment Share on other sites More sharing options...
JeepcoMJ Posted December 28, 2010 Share Posted December 28, 2010 I still say that you don't tow ANY jeep on a tow dolly. there is not one single year that says it's OK to put the tcase in neutral and tow it. in fact, they all advise against doing so, and using a dolly. flat towing in N is acceptable, however...but most of us don't flat tow our jeeps. it's just easier to avoid the hassle of even questioning the situation. I personally like not blowing up parts on newly acquired jeeps. Link to comment Share on other sites More sharing options...
mvusse Posted December 28, 2010 Share Posted December 28, 2010 I agree. For towing with a dolly, it is trivial to pull the rear drive shaft. Link to comment Share on other sites More sharing options...
COMJNUT Posted December 28, 2010 Share Posted December 28, 2010 the right way to tow on a dolly...remove rear drive shaft, it's only 8 bolts easy people! :nuts: Link to comment Share on other sites More sharing options...
Geonovast Posted December 28, 2010 Share Posted December 28, 2010 the right way to tow on a dolly...remove rear drive shaft, it's only 4 bolts easy people! :nuts: :thumbsup: Link to comment Share on other sites More sharing options...
HOrnbrod Posted December 28, 2010 Share Posted December 28, 2010 the right way to tow on a dolly...remove rear drive shaft, it's only 8 bolts easy people! :nuts: Eight bolts?? EDIT: See you caught it. Link to comment Share on other sites More sharing options...
whowey Posted December 28, 2010 Share Posted December 28, 2010 What do you guys that drop the rear D-shaft do about the slip yoke??? The only time I ever dolly-towed an XJ.. I used the recommendation in the owner's manual.. which is: Manual tranny.... transmission in gear T-case in neutral Auto tranny... Transmission in Park T-case in neutral Link to comment Share on other sites More sharing options...
COMJNUT Posted December 28, 2010 Share Posted December 28, 2010 the right way to tow on a dolly...remove rear drive shaft, it's only 8 bolts easy people! :nuts: Eight bolts?? EDIT: See you caught it. uh...yes...8, 4 that connect it to the rear axle, and 4 on the output from the t-case...oh wait I'm not stock in that aspect...dangit :rotf: I have a SYE, well then bag the output of the t-case, or you will have fluid all over the ground, and you will need to fill it after the dolly tow. :shake: or just do the 4 and then tie the driveshaft up to the chassis :banana: Link to comment Share on other sites More sharing options...
jimoshel Posted December 28, 2010 Author Share Posted December 28, 2010 I have a old bank money bag I use when dropping the drive shaft. Just slip it over the end of the DS, draw the strings up tight. and tie it up to something underneath. Keeps the DS and the bearings in place. Link to comment Share on other sites More sharing options...
mkbruin Posted December 28, 2010 Share Posted December 28, 2010 91+ are true neutral. 87-91 are a grey area, and some were true neutral, some weren't. Link to comment Share on other sites More sharing options...
COMJNUT Posted December 28, 2010 Share Posted December 28, 2010 I have a old bank money bag I use when dropping the drive shaft. Just slip it over the end of the DS, draw the strings up tight. and tie it up to something underneath. Keeps the DS and the bearings in place. eggzackery :jump: 91+ are true neutral. 87-91 are a grey area, and some were true neutral, some weren't. Ok, I'll be checking mine while I'm doing the oil change...and with video! :clapping: Link to comment Share on other sites More sharing options...
mvusse Posted December 28, 2010 Share Posted December 28, 2010 91+ are true neutral. 87-91 are a grey area, and some were true neutral, some weren't. I disagree. The changeover was partway through 94 or between 94 and 95. My 94 XJ's 231 (which is the original one it came with from the factory) does NOT have a true neutral. And not having a CAD, it cannot be towed on a dolly without pulling a drive shaft. Link to comment Share on other sites More sharing options...
Motion Offroad Posted December 28, 2010 Share Posted December 28, 2010 91+ are true neutral. 87-91 are a grey area, and some were true neutral, some weren't. I disagree. The changeover was partway through 94 or between 94 and 95. My 94 XJ's 231 (which is the original one it came with from the factory) does NOT have a true neutral. And not having a CAD, it cannot be towed on a dolly without pulling a drive shaft. Our '93 XJ NP231 does have true neutral. Our '94 YJ NP231 does as well. Link to comment Share on other sites More sharing options...
mkbruin Posted December 28, 2010 Share Posted December 28, 2010 91+ are true neutral. 87-91 are a grey area, and some were true neutral, some weren't. I disagree. The changeover was partway through 94 or between 94 and 95. My 94 XJ's 231 (which is the original one it came with from the factory) does NOT have a true neutral. And not having a CAD, it cannot be towed on a dolly without pulling a drive shaft. Double checked my sources, and you are correct. 95 was the changeover year. Before that, its really hit or miss with no rhyme or reason. Some are, some aren't. Link to comment Share on other sites More sharing options...
COMJNUT Posted December 28, 2010 Share Posted December 28, 2010 NP231J 1991... I'm so glad I can Laugh at myself: :cheers: CLICK THE LINKS 2HI 4HI NEUTRAL :chillin: Link to comment Share on other sites More sharing options...
jimoshel Posted December 28, 2010 Author Share Posted December 28, 2010 Beat me to it, with video no less. Anyway in 2H the drive shafts are dis connected from each other. For a short tow just put the tranny in Neutral and the TC in 2H. Link to comment Share on other sites More sharing options...
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