Cherokee crew cab and YJ

[Maf in UK]

Just joined and thought I'd also intoduce myself in the Jeep section.... Hoping to visit NZ and see the off roading you have....

I have a Cherokee, we crew cabbed it in a day, put lots of strength back... now even better in the lanes, (less glass to break and recovery gear can't bash us on the head, haha... 4.0 Auto 4.5" lift, 31" Maxxis enjoy the challenging lanes in a pretty stock truck...





Also have a YJ Wrangler, 4.0 Manual, 4" lift, 34" Swampers, Front locker, rear locker and stronger shafts going in soon... use this for the tougher lanes and punch hunts. Also run 33" Maxxis mudders if more road use... (lanes in the warmer months)



Help run a small club here in the south west of England, if anyone is ever this way... happy to show you around, cheers Maf

[haydgq]

The Cherokee ute chop looks quiet good, Thats the first one I've ever seen converted to a ute.

And was your Wrangler a 4.2 carbed engine from the factory.? And you retro fitted the later EFI 4.0, Only asking as I have a mate wanting to do this to his 89 YJ, he has the ax15 box so does the 4.0 bell just bolt right up.

Cheers

[Maf in UK]

The Cherokee ute chop looks quiet good, Thats the first one I've ever seen converted to a ute.

And was your Wrangler a 4.2 carbed engine from the factory.? And you retro fitted the later EFI 4.0, Only asking as I have a mate wanting to do this to his 89 YJ, he has the ax15 box so does the 4.0 bell just bolt right up.

Cheers

Hi,

Thanks, glad you like the Cherokee, put some new dents on it yesterday in a tight lane... There are a couple in the states, as far as we know it's the only one on the UK... but maybe there are some....

The Wrangler is 1993 and therefore a 4.0i from the factory, so I'm sorry I can help you...

Cheers Maf

[haydgq]

The Cherokee ute chop looks quiet good, Thats the first one I've ever seen converted to a ute.

And was your Wrangler a 4.2 carbed engine from the factory.? And you retro fitted the later EFI 4.0, Only asking as I have a mate wanting to do this to his 89 YJ, he has the ax15 box so does the 4.0 bell just bolt right up.

Cheers

Hi,

Thanks, glad you like the Cherokee, put some new dents on it yesterday in a tight lane... There are a couple in the states, as far as we know it's the only one on the UK... but maybe there are some....

The Wrangler is 1993 and therefore a 4.0i from the factory, so I'm sorry I can help you...

Cheers Maf

No worries, After i typed that i then realized that your YJ is prob a later model one that was factory with the EFI 4.0.

Does anyone else on here know about fitting the efi 4.0 high output to the YJ with the ax15 box.?, From what I've read the 89 YJ should have the ax15 box that box that all the later model wranglers had so the engine should bolt up

[xj]

what was the peugot box they put into the YJ?

[haydgq]

what was the peugot box they put into the YJ?

The earlier ones had the Peugeot box and in 1989 they changed to the later (stronger) AX15 box which is the 5 speed manual all the wranglers have run since then not including the latest JK shape.

So there should be no reason the 4.0 efi engine wont bolt upto the ax15 box either straight up or swapping bell housing's

Im trying to talk my mate into buying the TJ shape wrangler as its already coiled and got the efi engine but he doesnt want to, Instead wants to do the engine swap on the YJ and keep the dirty cart springs

[xj]

what was the peugot box they put into the YJ?

The earlier ones had the Peugeot box and in 1989 they changed to the later (stronger) AX15 box which is the 5 speed manual all the wranglers have run since then not including the latest JK shape.

So there should be no reason the 4.0 efi engine wont bolt upto the ax15 box either straight up or swapping bell housing's

Im trying to talk my mate into buying the TJ shape wrangler as its already coiled and got the efi engine but he doesnt want to, Instead wants to do the engine swap on the YJ and keep the dirty cart springs

yup, just been into me books.


Does ya mate realise the electrical hoops hes gunna have to jusmp through, computer etc etc etc. Know a chap that put the 4.0l HO version out of an XJ into a CJ.... reckons although it goes great now, he'd never do it again.

[haydgq]

what was the peugot box they put into the YJ?

The earlier ones had the Peugeot box and in 1989 they changed to the later (stronger) AX15 box which is the 5 speed manual all the wranglers have run since then not including the latest JK shape.

So there should be no reason the 4.0 efi engine wont bolt upto the ax15 box either straight up or swapping bell housing's

Im trying to talk my mate into buying the TJ shape wrangler as its already coiled and got the efi engine but he doesnt want to, Instead wants to do the engine swap on the YJ and keep the dirty cart springs

yup, just been into me books.


Does ya mate realise the electrical hoops hes gunna have to jusmp through, computer etc etc etc. Know a chap that put the 4.0l HO version out of an XJ into a CJ.... reckons although it goes great now, he'd never do it again.

No i dont think he realises the extend of it all and I'm doing my best to make him aware of all the little things but hes not quiet getting it and thinks it can be done easily and very cheaply as hes only paid $350.00 for the engine but thats the easy part

I keep saying for the price to do it all he should sell the YJ and buy a later model and its coiled aswell as he complains of the harsh ride of the cart springs

[xj]

No i dont think he realises the extend of it all and I'm doing my best to make him aware of all the little things but hes not quiet getting it and thinks it can be done easily and very cheaply as hes only paid $350.00 for the engine but thats the easy part

I keep saying for the price to do it all he should sell the YJ and buy a later model and its coiled aswell as he complains of the harsh ride of the cart springs

different transmission setups etc combined with the different donk apparently cause all sorts of 'mares with either computer that will be put in it. Sensors for one dont relate to the others etc etc etc.

I applaud him for his sense of adventure, but the bloody things are frustrating enough to own and work on as it is, let alone pulling a sadomasochistic (sp) bit of torture like that. Masturbating with a cheesegrater would be about as much fun!

[bernie]

Just came across this and thought I’d add my little bit to the mix. I got a 87 Wrangler. Hands down, one of best modifications I have done was the 4.0 litre conversion. I too thought the wiring was going to be a nightmare, but after getting a “pin out” (and if you need one let me no) for the computer, it turned out to be a non issue, 3 or 4 splices is all it took. There are other things that demand more attention, like fuel pump and crank angle sensor, mine has the TF999 auto and I did not want to hack up the bell housing to fit the angle sensor, the fix was to set-up and re-machine the front harmonic balancer then fit the angle sensor up front, any competent machinist can do this. As for the fuel pump issue, this was fixed with a header tank, a electric feeder pump and a remote injector pump. The trans bolted straight up to the engine, had to re-drill the torque converter holes in the flex plate is all. In reality it was quiet a simple job.
Bernie

[xj]

Mr Bernie!!! Well gudday there!

haydgq, take it from him bud, thers not much Bernie wont be knowing about it.

(dont suppose you got a spare NP231 shell floating about Bernie?)

[Maf in UK]

Hats off to that conversion...

Other bits of info that are related....

Use the 4.2 crank in a 4.0 and you'll have a 4.6 as it's a shorter stroke... just need a supercharger then eh... haha...

Also the AX15 and AW4 (Auto) are made by the same company that supply Toyota...

[haydgq]

Hats off to that conversion...

Other bits of info that are related....

Use the 4.2 crank in a 4.0 and you'll have a 4.6 as it's a shorter stroke... just need a supercharger then eh... haha...

Also the AX15 and AW4 (Auto) are made by the same company that supply Toyota...

Yea that's the other thing we have talked about is fitting the EFI from the 4.0 to the 4.2 and yea i allways knew the AW4 was a Aisin box but was not sure on the AX15 and though if it was a Aisin box there would be a Toyota Transfer case that would bolt on getting rid of that stupid slip yoke system

And thanks for the info and help Bernie and XJ thats really helpfull.

Cheers

Hayden

[bernie]

While I agree with your sentiments on the slip yoke system on the Jeep transfer cases, it is pretty shitty. But don’t be so quick to toss it out. They are actually quiet a tuff unit. Not counting smashing it up on rocks, I anit seen one break. (maybe I lead a sheltered life) The slip yoke thing can be counted with a eliminator kit and you can ether buy it or make it. The American’s don’t like the later for some reason, they call it a “hack and tap” well, I’ve run my own version of a hack and tap for the last 6 years with no problems. The NP 231 and 242 transfer cases also have a far better (in my opinion) off the shelf low range ratio, not to mention what’s available after market for them. you can also clock them pretty much to where ever you want with little trouble, all of the above can be quiet difficult with a jap case.

Now in sayin that, this is the second time on the same day I have been asked about 231 case, (what are you doing to them..?) sorry XJ, I don’t have one.....
Bernie.

[haydgq]

While I agree with your sentiments on the slip yoke system on the Jeep transfer cases, it is pretty shitty. But don’t be so quick to toss it out. They are actually quiet a tuff unit. Not counting smashing it up on rocks, I anit seen one break. (maybe I lead a sheltered life) The slip yoke thing can be counted with a eliminator kit and you can ether buy it or make it. The American’s don’t like the later for some reason, they call it a “hack and tap” well, I’ve run my own version of a hack and tap for the last 6 years with no problems. The NP 231 and 242 transfer cases also have a far better (in my opinion) off the shelf low range ratio, not to mention what’s available after market for them. you can also clock them pretty much to where ever you want with little trouble, all of the above can be quiet difficult with a jap case.

Now in sayin that, this is the second time on the same day I have been asked about 231 case, (what are you doing to them..?) sorry XJ, I don’t have one.....
Bernie.

Hi Bernie,

Cheers for the help, I've actually seen 3 Wranglers bust the slip yoke's so maybe you do lead a sheltered life

The donor engine we can get has a auto trans behind it and its fully complete so now im wondering if fitting the engine/auto to the YJ might be the way to go, then its just changing the trans mounts and altering the drive shaft lengths, Then the engine/trans and ECU should all want to work together nicely so will keep the wiring/running job a bit easier for the sparky.?

Or like i said earlier fitting the 4.0 head and EFI system, What is the easiest way to go in your guys opinion's.?

Cheers for any help its really appreciated, and maybe my mate likes tossing off with a cheese grater as he's still keen as mustard and wont listen to me about buying a later model wrangler