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XJ to CRD?
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=52438		 Page 1 of 2
Author:  ROKTAXI [ Mon May 03, 2010 9:50 pm ]
Post subject:  XJ to CRD?
I've been checking out info about KJ CRD and thinking about making the switch. However, I'm concerned about the limitation it may have in regards to moderate (+) 4 wheeling. So here I am to get schooled. My '94 XJ has a 5" lift w/ 44 rear (Detroit Locker) and 30 front (TruTrac) with a Warn axle kit front and back / disk brakes. The gearing is 4.88. It also has a Ruby 4:1 TC, 33" BFG KM2's. The motor has 120K on the OD and was thinking about a stroker as I want to pull a 2K lb. trailer.... enter the CRD.

My goal is a long term vehicle that has MOST but not all of the off road attributes of my XJ but better fuel economy and more creature comforts. :juggle:

What year(s) are preferred?
Author:  tjkj2002 [ Mon May 03, 2010 9:54 pm ]
Post subject:  Re: XJ to CRD?
You only have 2 choices for a year if in the US,'05 and '06 and there not that common.

After you get it close to the ability of your XJ your not looking at much better mpg's or towing ability and will spend 2-3 times more(or more).
Author:  bugnout [ Mon May 03, 2010 11:15 pm ]
Post subject:  Re: XJ to CRD?
It can be done :twisted:
Author:  DirtyKK [ Mon May 03, 2010 11:55 pm ]
Post subject:  Re: XJ to CRD?
deisel engine swap into the XJ :mrgreen:
Author:  stoutdog [ Tue May 04, 2010 12:26 am ]
Post subject:  Re: XJ to CRD?
I'm pretty sure you are maxed at a 2" lift...
Author:  Sir Sam [ Tue May 04, 2010 12:39 am ]
Post subject:  Re: XJ to CRD?
ROKTAXI wrote:
I've been checking out info about KJ CRD and thinking about making the switch. However, I'm concerned about the limitation it may have in regards to moderate (+) 4 wheeling. So here I am to get schooled. My '94 XJ has a 5" lift w/ 44 rear (Detroit Locker) and 30 front (TruTrac) with a Warn axle kit front and back / disk brakes. The gearing is 4.88. It also has a Ruby 4:1 TC, 33" BFG KM2's. The motor has 120K on the OD and was thinking about a stroker as I want to pull a 2K lb. trailer.... enter the CRD.

My goal is a long term vehicle that has MOST but not all of the off road attributes of my XJ but better fuel economy and more creature comforts. :juggle:

What year(s) are preferred?


Owning many XJ's, one CRD, and swapping a CRD into an MJ (with a CRD planned for my XJ). I can tell you right now its going to take LOTS of work to get a KJ to the point that your XJ is at.

What you need to do is grab something like this:
http://ww4.traauctions.com/kws/napplica ... Exit=Close

For a few grand and swap it into your XJ.

Even stock for stock KJ vs XJ, the KJ is just not as good offroad as the XJ. There are many "easy" trails around moab that I have taken my XJ that I would be concerned about taking my KJ on without serious skids, lifts, etc. Basically, don't take a stock KJ on em.

If your used to the visibilty of the XJ for city driving you will dissapointed with the KJ.

There are trails I take on both Jeeps, never touch bottom, never fear for anything on the underside of the Jeep, but when I am in the KJ, I loose track of the number of times something hits the underside.

I don't fear light to moderate 4wheeling in my cherokee, but I fear for the KJ. I'll take a stock XJ over black bear pass, I sure as heck wouldn't take a stock KJ over black bear.
Author:  UFO [ Tue May 04, 2010 2:39 pm ]
Post subject:  Re: XJ to CRD?
stoutdog wrote:
I'm pretty sure you are maxed at a 2" lift...
Unless you convert to a solid front axle. I'm thinking a CRD engine into the XJ might save money and time.....
Author:  Sir Sam [ Tue May 04, 2010 3:56 pm ]
Post subject:  Re: XJ to CRD?
UFO wrote:
stoutdog wrote:
I'm pretty sure you are maxed at a 2" lift...
Unless you convert to a solid front axle. I'm thinking a CRD engine into the XJ might save money and time.....


x2
Author:  tjkj2002 [ Tue May 04, 2010 4:12 pm ]
Post subject:  Re: XJ to CRD?
Sir Sam wrote:
UFO wrote:
stoutdog wrote:
I'm pretty sure you are maxed at a 2" lift...
Unless you convert to a solid front axle. I'm thinking a CRD engine into the XJ might save money and time.....


x2

Save money,not really,save time..........................

Hey Sir Sam how long have you been working on the MJ? About 12-18 months now?

Took me three and half months to make my KJ more capable then a XJ,even a well modified XJ.
Author:  UFO [ Tue May 04, 2010 4:19 pm ]
Post subject:  Re: XJ to CRD?
tjkj2002 wrote:
Sir Sam wrote:
UFO wrote:
Unless you convert to a solid front axle. I'm thinking a CRD engine into the XJ might save money and time.....


x2

Save money,not really,save time..........................

Hey Sir Sam how long have you been working on the MJ? About 12-18 months now?

Took me three and half months to make my KJ more capable then a XJ,even a well modified XJ.
I suppose it depends on one's skill set and parts available. And which vehicle you like. I suppose I would like the SFA Libby, but I'm only capable of swapping an engine.... :D
Author:  KJ 119 [ Tue May 04, 2010 6:00 pm ]
Post subject:  Re: XJ to CRD?
ROKTAXI wrote:
However, I'm concerned about the limitation it may have in regards to moderate (+) 4 wheeling.

My goal is a long term vehicle that has MOST but not all of the off road attributes of my XJ but better fuel economy and more creature comforts. :juggle:



A lifted CRD is fine for moderate wheeling,and can be equipped with lockers(see bugnout's sig).
No 5" lift though,so I'm sure a 2" lifted CRD is comparable to a 2" lifted XJ,but will tow better than one.



tjkj2002 wrote:

Took me three and half months to make my KJ more capable then a XJ,even a well modified XJ.


Seemed like that "Under Construction" sign was up there for a LOOOOOONG time. :goink:
Author:  tjkj2002 [ Tue May 04, 2010 6:24 pm ]
Post subject:  Re: XJ to CRD?
KJ 119 wrote:

tjkj2002 wrote:

Took me three and half months to make my KJ more capable then a XJ,even a well modified XJ.


Seemed like that "Under Construction" sign was up there for a LOOOOOONG time. :goink:

3.5 months is was up,like stated.
Author:  Sir Sam [ Tue May 04, 2010 6:29 pm ]
Post subject:  Re: XJ to CRD?
tjkj2002 wrote:
Hey Sir Sam how long have you been working on the MJ? About 12-18 months now?


In the past year I have worked about 1:45 minutes on it. Getting an Engineering Degree is more important to me than a vehicle.
Author:  KJ 119 [ Tue May 04, 2010 7:26 pm ]
Post subject:  Re: XJ to CRD?
tjkj2002 wrote:
KJ 119 wrote:

tjkj2002 wrote:

Took me three and half months to make my KJ more capable then a XJ,even a well modified XJ.


Seemed like that "Under Construction" sign was up there for a LOOOOOONG time. :goink:

3.5 months is was up,like stated.



Must have been the anticipation.
Was well worth the wait. 8)
Author:  2mopar_diesels [ Tue May 04, 2010 8:00 pm ]
Post subject:  Re: XJ to CRD?
At minumum to make a KJ even moderately capable compared to your current XJ without breaking the bank, your looking at this:


Front Steel diff upgrade with DTT or a selectable locker
4" lift w/32in tires and upper a-arms (max you can go without doing a very expensive front diff cradle drop, and rear longarms)
machined front cv axles
depending on individual vehicle, also may need a t-case short shaft kit w/new rear cv type driveshaft and lower gears
Author:  ROKTAXI [ Tue May 04, 2010 9:33 pm ]
Post subject:  Re: XJ to CRD?
Sir Sam wrote:
ROKTAXI wrote:


Owning many XJ's, one CRD, and swapping a CRD into an MJ (with a CRD planned for my XJ). I can tell you right now its going to take LOTS of work to get a KJ to the point that your XJ is at. .


Thanks all for your input. I knew it would be a huge sacrifice to go with a stock KJ but I was hoping for mods that wouldn't break the bank.

Sir Sam: Your recommendation of swapping a CRD into the XJ may be the compromise. I'll have to research what's entailed for that swap. I've budgeted $2500 for a stroker and now I will weigh that against a CRD swap. As a side note, I have a '06 TDI and have been super impressed with the performance. That swap, however, is not financially feasible or maybe not at all as I have not found anyone who has accomplished it. The CRD may be a doable swap as my main goal is added power for towing as well as fuel mileage. The one major down side for me is the electrical. Do you know of any write-ups on the CRD swap?
Author:  tjkj2002 [ Tue May 04, 2010 11:30 pm ]
Post subject:  Re: XJ to CRD?
ROKTAXI wrote:

I've budgeted $2500 for a stroker and now I will weigh that against a CRD swap.

Going to be pretty hard to get a 2.8 CRD engine and matching trans for that price.
Author:  Sir Sam [ Wed May 05, 2010 1:00 am ]
Post subject:  Re: XJ to CRD?
ROKTAXI wrote:
Sir Sam wrote:
ROKTAXI wrote:


Owning many XJ's, one CRD, and swapping a CRD into an MJ (with a CRD planned for my XJ). I can tell you right now its going to take LOTS of work to get a KJ to the point that your XJ is at. .


Thanks all for your input. I knew it would be a huge sacrifice to go with a stock KJ but I was hoping for mods that wouldn't break the bank.

Sir Sam: Your recommendation of swapping a CRD into the XJ may be the compromise. I'll have to research what's entailed for that swap. I've budgeted $2500 for a stroker and now I will weigh that against a CRD swap. As a side note, I have a '06 TDI and have been super impressed with the performance. That swap, however, is not financially feasible or maybe not at all as I have not found anyone who has accomplished it. The CRD may be a doable swap as my main goal is added power for towing as well as fuel mileage. The one major down side for me is the electrical. Do you know of any write-ups on the CRD swap?


2500 is a little on the low side for buying a wrecked CRD. It's more likely going to cost 3-3.5k for a wrecked CRD. I paid $3400 for my rolled CRD Limited(which various parts are being picked off of it and sold, and the leather interior went into my sport).

Wiring, ya, its wiring, and plenty of it, I've spent plenty of time with the service manual sitting down and figuring it out. The short of it is, keep KJ drivetrain wiring intact, interface to XJ wiring where needed(run-start signal, etc).

The trickier things are things like the guage cluster, I haven't gotten this far yet but right now the plan is to use a TJ gauge cluster, it uses the PCI bus - like the KJ does, so hopefully all the things like engine temp, rpm, voltage, etc will work off of that cluster.

It's not uncomplicated, but sitting down and tracing out the connector pinouts is the way to go. basically there are about 4 connectors that interface the drivetrain harness with the KJ harness, do the work to connect these up together and you have most of the ancillary controls setup(AC relays, etc).

Best I can say is watch my thread as I am posting all the information that I can as I come across it there:
viewtopic.php?f=5&t=32756
Author:  CRD Joe [ Sat May 08, 2010 1:20 am ]
Post subject:  Re: XJ to CRD?
XJ's unibodys WEAR OUT! Put that CRD into a TJ of sorts.
Author:  Sir Sam [ Sat May 08, 2010 1:33 am ]
Post subject:  Re: XJ to CRD?
CRD Joe wrote:
XJ's unibodys WEAR OUT! Put that CRD into a TJ of sorts.


Ya, thats not true.
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