2.5L Transmission Swap

[Green Mesa XJ]

Here is a V6 from a 94 Camaro, are you telling me this cannot be planted in an MJ?
 

I think you’ve got it backwards, I’m saying the iron head 3.4 will fit just fine since it’s essentially is a stroked 2.8. A 2.8 block after 85 with the bigger mains can be converted to a 3.1. 3.4 is bored out more.
94 3.4 Camaro final rendition of the gen 1 2.8, cylinder head were the same 1985 to 1995 when the gen 1 ended. 3.4 was sold to jeep, Isuzu, gm , etc owners to upgrade their tired underpowered 2.8 & 3.1 engines.
The fwd gen 2&3 are based on the block but it’s not the same engine like the gen 1 2.8,3.1,3.4.
There are some who adapt the 3400 engine and aluminum heads to s10 and Cherokee but it’s not a drop in like the iron head gen 1 3.4. Oil pumps and pans can be vastly different along with a other changes to the block. It’s still a 60 deg block based on the original 1980 block, there are even v8s based on the design.

All I’ve said is the Camaro 3.4 is the last engine like the original 2.8 that is bolt in for these jeeps and a good upgrade. I did say if it had flaws associated with it like the 2.8 I didn’t know about it but believe it to be a good engine.




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[Jeep Driver]

I'm not arguing or picking a fight, and it's nothing personal with anyone. I don't care what the kid does with his truck, this is not about one engine or one transmission. 

What I am trying to do is get people to think. 

People are going to have to begin to come up with alternatives. What you did 5-10-15 years ago is irrelevant to the upcoming generation. The days of $75 transfer cases and $150 transmissions and $300 donor MJs are GONE, DONE, OVER!

 

Read carefully- Yes, parts can still be found. 

 

However- 

 

I just did another search, I searched all 25 of Pull-A-Part's yards. Out of 25 yards there are 6 80's era XJs, no MJs at all. 

Augusta 1

Baton Rouge 1

El Paso 1

Indianapolis 1

Lafayette 1

Tucson 1

 

New Orleans West has a '94 with a 2.5 AX5

El Paso has a '88 with a 2.5 AX5 but does not give him an external bell. 

Augusta has an '86 with 2.5 AX5 but no external bell. 

 

That's it. 

 

Yes, that is just one company, one set of 25 yards that can be searched.......but..........it's an indicator, it tells me what is out there, what is available. Two years ago most of these yards would have had a dozen or more XJs, not today. 

 

Answers from years past no longer apply. 

 

 

[JeepcoMJ]

This thread is about a tranny swap.

 

And not the Craigslist "casual encounters" kind.

 

Let's get back on subject.

 

The ax5 is all he will need.  It isn't a wheeler, drag strip truck, racer, or running oversized tires.

 

The ax5 is sufficient.  Just because someone has had a run of bad luck while using and abusing one doesn't mean it's the transmissions fault.

 

I myself could never get more than 1k miles out of one.  But, then,  I also put a Buick 3800 in front of one in my novice jeep years.

[carnuck]

I was looking into a 700R4 swap in my ‘87 MJ but the motor is so worn out that unless I find another from a TJ or something, I will probably put in one of the 4.0Ls I have with an AW4 (I still have several)
Sucks to have to rewire the truck from TBI and change the fuel pump (longbox Renix won’t fit)
If I had more time, I would attempt to run the TBI with the 4.0L but I feel like my ability and time are drawing shorter each day.


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