88 Comanche Project - JeepForum.com

 
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post #1 of 5 Old 10-06-2012, 04:01 PM Thread Starter
CBComanche
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88 Comanche Project

So I have an 88 Comanche. Its 2wd with a 4.0 and manual trans. My plans are to do a 4x4 swap and swap the engine to a well-running 4.0. Can anyone offer any info on what front end will bolt up to mine and what engine's with be a direct fit. I have heard anything from 88 to 01 in a Comanche or a Cherokee will fit. Any advice?

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post #2 of 5 Old 10-06-2012, 10:05 PM
ftpiercecracker
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1990 MJ Comanche 
 
Join Date: Jul 2011
Location: woodbury
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Engine: 87-90 Renix fuel injection , 91-92 OBDI and OBDII (they will say High Output, "HO", on the back), YOU have a Renix. If you want to use an HO motor you will have to swap all underhood electronics over to HO as well.

Swapability: Front doors foward, cherokees 96 and older are 100% comache compatiable. 97+ still swapable with little to moderate modification, depending on what your plans are.

Front end: look for a Cherokee (XJ) High Pinion Dana 30 front end and a 231 Transfer case, this is going to be your best bet for a direct bolt on swap. I have not done a 4x4 conversion myself, but finding these items will get the ball rolling.

Hopefully somebody else will chime in to correct any mistakes i have made.
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post #3 of 5 Old 10-07-2012, 12:52 AM
USMC_XJ
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OBDII didn't come out until 96. Other than that, everything is right. You also need to get a new transmission also. Because the I put spline count and depth were different from 90-91, when you get the transmission, get the transfer case that came already bolted to it. 91-99 XJ dana 30 were HP. 95+ had the bigger 297 Ujoints. Unless the pre 96 had abs. Those had the bigger Ujoints also. Pre 91 hp dana 30 were vacuum disconnect. So, unless you want to deal with getting a cable lock, stick to 91+.

1994 Cherokee Sport - 4.0 HO - AW4 - 4WD

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post #4 of 5 Old 10-07-2012, 09:26 PM
ftpiercecracker
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Quote:
Originally Posted by USMC_XJ View Post
OBDII didn't come out until 96. Other than that, everything is right. You also need to get a new transmission also. Because the I put spline count and depth were different from 90-91, when you get the transmission, get the transfer case that came already bolted to it. 91-99 XJ dana 30 were HP. 95+ had the bigger 297 Ujoints. Unless the pre 96 had abs. Those had the bigger Ujoints also. Pre 91 hp dana 30 were vacuum disconnect. So, unless you want to deal with getting a cable lock, stick to 91+.
I could have sworn the last of the comanches had OBDII , guess i need to think before i speak (type) thanks for the correction USMC_XJ

and as for the Disconnect issues, there is a SUPER simple fix to this, so if you find one for a good deal dont be afraid to take a look, BUT if you do find a non disconnect in the same condition and for the same price got for it instead.
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post #5 of 5 Old 10-08-2012, 12:22 PM
97_4popper
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1990 MJ Comanche 
 
Join Date: Jan 2005
Location: Guston
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Best to get a donor. Find yourself an MJ or XJ for a donor vehicle. I did not do a 4x4 conversion, but did an auto to manual conversion. Got a donor for $400. It's amazing the little things you will need to pull. Transfer case linkage, bracket for the linkage to name a couple. Don't forget you'll need a different drive shaft as well.

Head over to comancheclub.com. All you'll ever need to know about these trucks is over there.

90 MJ 4.0 4X4 5sp LB Pioneer Big Ton.
Truck contains parts from 3 MJs, 2 XJs, 1 TJ and a dishwasher.
http://img.photobucket.com/albums/v1...IMG_0101-2.jpg
Check out comancheclub.com...
My build thread: http://comancheclub.com/forums/viewt...hp?f=7&t=27756
Wifes: 97 TJ 2.5 4X4 5sp 31's stock. . . Slow but; reliable.
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