axle swap -
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post #1 of 6 Old 05-18-2013, 11:51 AM Thread Starter
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1988 MJ Comanche 
Join Date: May 2013
Location: jena
Posts: 3
axle swap

i have an 88' mj and i found a cj in the scrap yard, is it possible to swap both axles out of the cj into my mj with the transfer case as well. as you may know the mj is driver side on the front where as the cj is passenger side. nothing is wrong with my transfer case i just beleive the cj has a better one. i am not going bigger than 33's.

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post #2 of 6 Old 05-23-2013, 09:35 PM
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1990 MJ Comanche 
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Location: woodbury
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CJs are narrower, have leaf sprung front axles, and (like you already said) have the pumpkin on the wrong side. Forget a straight bolt in, i dont even think it could be made to work, even with extensive cutting and welding.

I dont own a CJ, but i have been around them a good bit. I do own an MJ and have done extensive work on her.

the stock D30 front end is pretty capable and can handle 33s fairly well. And even though we all know the rear D35 is crap, it can handle some stress. If you to get rid of it for something better, look for either a ford 8.8, chr 8.25, or (SUPER rare) a comanche D44. There are others, but these are the most commonly known and swapped.

231 T-case is a pretty bullet proof as well for light offroading.
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post #3 of 6 Old 05-24-2013, 06:19 PM Thread Starter
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1988 MJ Comanche 
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Location: jena
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You are correct ftpiercecracker, they are to narrow. However iwas lucky enough to come across a ford explorer there as well and it does have the 8.8 in it. The axle in my mj was redneck engineered and the previous owner welded the rear end together. As for the dana 300, I still grabbed it for $36 the price of scrape metal. I am going to go through it and rebuild it with the tera low 4.0-1.0 and do the transfer flip so that it still lines up with driverside. So, now my question is, after I do the spring over and the spring spacer up front, will I have enough room for 33's?
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post #4 of 6 Old 05-25-2013, 07:06 AM
Pete M
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1988 MJ Comanche 
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going spring-over will give 5-6" of lift. you're not going to be able to match that with a spacer up front. you need a complete 5-6" lift kit.

-88 MJ; 4.0L, ex-2wd, TJ ax15/231, 78 Ford D44 w/spool, 9" w/posi, 33" trXus MTs, custom roll-bar/bumpers/etc.
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post #5 of 6 Old 05-28-2013, 01:05 PM
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1988 MJ Comanche 
Join Date: Aug 2008
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I have an 88 Pioneer, 6.5" Rusty's springs and I still rub a bit at the rear of my wheel well at or near lock on 33" Coopers. If I stuff it, forget about it... I have some trimming to do.
I did the SOA in the rear it netted me around 5.5"-6" , with the engine weight it is pretty level

"Never stand begging for that which you have the power to earn. "
Miguel de Cervantes
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post #6 of 6 Old 06-07-2013, 07:38 PM Thread Starter
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1988 MJ Comanche 
Join Date: May 2013
Location: jena
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I am a welder/fabricator by trade, so as for the front springs I was going to build spacers. Today I found a chryco 8.25 out of a 98 xj, so now the rear axle bit is taken care of. I also came across a 3 speed transmission that was on an old inline 6, my new question of the day is, does anyone know how to identify what it is? I am really hoping it is a Muncie.
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