What would you do?
08-28-2010, 04:53 PM
#1
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Year: 1985
Model: Cherokee
Engine: 2.5
What would you do?
I found a 87 commanche w 4.0 5 speed np231 t case, Its only 400.00 so i was thinking of buying it and rebuilding the 4.0 and swapping everything over to my 85 4cyl 4 speed cherokee. I am gonna do a np231 swap regardless if I do an engine swap or not but I was wandering how many of you think its worth the trouble?
08-28-2010, 06:57 PM
#2
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Year: 1991
Model: Cherokee
Engine: I-6 4.0 HO
If the tranny and t-case work well, totally go for it. The MJ and XJ were made on the same assembly line, so if I remember correctly, it should all line up. I dunno if you'd need the ECM as well or not. But like I said, if it all works, do it.
08-28-2010, 08:33 PM
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Year: 1997
Model: Grand Cherokee
Engine: 5.2
i dont see any problem with that. sounds like a good plan. but i am pretty new to jeeps. like a year or so and not to familiar with mj's. did the mj's come with an AX15? that would be the only "issue" i could think of, but once again im new.
08-28-2010, 08:43 PM
#5
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Year: 1990
Model: Cherokee
Engine: 4.0
i had a 92 manche eliminator, that thing was untouchable. the guy i sold it to did a ford 5.0 engine swap i wish i kept it haha good luck man
08-28-2010, 09:06 PM
#6
MJ>XJ
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Year: 1990
Model: Comanche
Engine: 4.0 I6
nope... wont work... youll have to swap the entire engine harness... engine... transmission... transfercase... and the motor mounts are NOT the same... not the bolt in mounts... but youll actually have to cut the mounts out of the frame and weld in the ones from your other jeep... this is not worth it because your better off just buying another XJ with a 4.0 already in it where the rest of the jeeps still in good enough condition...
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08-28-2010, 09:13 PM
#8
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Year: 1997
Model: Grand Cherokee
Engine: 5.2
nope... wont work... youll have to swap the entire engine harness... engine... transmission... transfercase... and the motor mounts are NOT the same... not the bolt in mounts... but youll actually have to cut the mounts out of the frame and weld in the ones from your other jeep... this is not worth it because your better off just buying another XJ with a 4.0 already in it where the rest of the jeeps still in good enough condition...
08-28-2010, 10:28 PM
#9
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Year: 1985
Model: Cherokee
Engine: 2.5
guess ill just keep looking for an ax5 and np231 for my 2.5.... thanks guys. I love my jeep so getting another one is not an option my dad and I have spent alot of time working on this thing together, ill doubt ill ever get rid of it.
08-29-2010, 06:24 AM
#12
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Year: 90
Model: Cherokee
Engine: 4.0
Huntingman is correct but he left out some details....
You are dealing with two different generations of vehicles...
Your 85 is a first generation. The Comanche(which is a heck of alot of fun) is a second generation. There-in lies a bunch of the problems. The first generation of the XJ/MJ wasn't designed for the size of the 4.0l motor. The second generation was.
You are dealing with two different generations of vehicles...
Your 85 is a first generation. The Comanche(which is a heck of alot of fun) is a second generation. There-in lies a bunch of the problems. The first generation of the XJ/MJ wasn't designed for the size of the 4.0l motor. The second generation was.
08-29-2010, 08:35 AM
#13
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Year: 1990
Model: Comanche
Engine: 4.0 I6
Huntingman is correct but he left out some details....
You are dealing with two different generations of vehicles...
Your 85 is a first generation. The Comanche(which is a heck of alot of fun) is a second generation. There-in lies a bunch of the problems. The first generation of the XJ/MJ wasn't designed for the size of the 4.0l motor. The second generation was.
You are dealing with two different generations of vehicles...
Your 85 is a first generation. The Comanche(which is a heck of alot of fun) is a second generation. There-in lies a bunch of the problems. The first generation of the XJ/MJ wasn't designed for the size of the 4.0l motor. The second generation was.
and yes they all take cutting the mount style out of the frames... thats why if your gonna do it a V8 is better in my opinion... but keep the 2.5... just a good as the 4.0 and just the same power as long as you run the right gears...
nothings about motor and power... i thinks gears are cheaper and more important then power...