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 Post subject: Re: Cherokee drivetrain
PostPosted: Wed Jul 30, 2014 8:01 am 
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Pacer

Joined: Wed Feb 13, 2013 1:25 pm
Posts: 516
Location: Nova Scotia
Here's my mishmash of information for my swap :

Eagle to XJ Engine Swap :

Notes :
- 242 Tcase is shorter than others. Will require longer front driveshaft
- 258 Oil pan use on 4.0L
- XJ crossbar – adapt and lower to fit XJ transmission. Eagle may fit
- Gears – 3.2x and up (3.55 D35) – already have D35 and D30 w/3.55
- TJ/ZJ fan + water pump fits nicely in place of XJ… Is the XJ Vbelt or Serpentine?
- Can use the AMC Eagle alternator in place of the XJ
- XJ exhaust
- XJ fuel lines (if good)
- XJ computer / transmission computer / wiring
- Power steering bracket may need cutting for exhaust
- XJ steering box



Parts :
- Fuel pump / filter (in tank), in line filter
- CJ 6 cylinder engine mounts (Energy Suspension brand)
- Brake pads
- Dual fan from early 90s full size sedans ?
- U joints (driveshaft)
- Balljoints ?
- Rear hatch lifts
- Steering wheel
- Fluids : oil, transmission fluid, coolant, gear oil
- Oil pressure switch for 4.0


If anyone wants to chime in on anything I should be looking at, adding, etc, let me know.


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 Post subject: Re: Cherokee drivetrain
PostPosted: Thu Jul 31, 2014 12:07 am 
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Hornet
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Joined: Thu May 02, 2013 10:40 am
Posts: 1175
Location: North Seattle sort of
Nightpath wrote:
Here's my mishmash of information for my swap :

Eagle to XJ Engine Swap :

Notes :
- 242 Tcase is shorter than others. Will require longer front driveshaft
- 258 Oil pan use on 4.0L
- XJ crossbar – adapt and lower to fit XJ transmission. Eagle may fit
- Gears – 3.2x and up (3.55 D35) – already have D35 and D30 w/3.55
- TJ/ZJ fan + water pump fits nicely in place of XJ… Is the XJ Vbelt or Serpentine?
- Can use the AMC Eagle alternator in place of the XJ
- XJ exhaust
- XJ fuel lines (if good)
- XJ computer / transmission computer / wiring
- Power steering bracket may need cutting for exhaust
- XJ steering box



Parts :
- Fuel pump / filter (in tank), in line filter
- CJ 6 cylinder engine mounts (Energy Suspension brand)
- Brake pads
- Dual fan from early 90s full size sedans ?
- U joints (driveshaft)
- Balljoints ?
- Rear hatch lifts
- Steering wheel
- Fluids : oil, transmission fluid, coolant, gear oil
- Oil pressure switch for 4.0


If anyone wants to chime in on anything I should be looking at, adding, etc, let me know.


If 242 is shorter, then you need a longer rear shaft (actually, a different rear shaft because they don't use the fixed yoke shaft with center joint. They use a slip yoke like older RWD cars) Front shaft may need to be shorter, but they don't always align to the same position as the one from your Eagle tcase.

Eagle and XJ D30 are different. XJ is high pinion.

When I put the 4.0L into my '84 J10, I used all the 4.0L serpentine accessories and belt except I used a TJ/ZJ waterpump and fan with the same alt as the Eagle (simpler to fix and cheaper/easier to get from any '70s/early 80s Chev) Vee belt went away in '87 except a few 2.5Ls.

You need the brackets off the 4.2L on the 4.0L and some years of 4.0 need a rib ground down for the axle hanger.

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 Post subject: Re: Cherokee drivetrain
PostPosted: Fri Aug 22, 2014 9:14 am 
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Javelin

Joined: Thu Mar 28, 2013 9:07 am
Posts: 216
The 242 can be installed using your old driveshafts. The front will be exactly the same if you use the Eagle front yoke, which is shorter than the XJ version. The Eagle yoke bolts right on and the front half of the casting is nearly identical with all the same dimensions up forward.

In the back of the 242 you have a slip joint where the Eagle used to have a solid yoke. If you keep the slip joint in your original driveshaft it will be too much available travel and the driveshaft will fall out of the vehicle. The Eagle slip joint comes apart pretty easily and a 3" piece of pipe slides snuggly over the splines. With that pipe in place the original driveshaft will work nicely. The balance of the shaft does not appreciably change and I did not have any vibrations from adding the pipe.


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 Post subject: Re: Cherokee drivetrain
PostPosted: Fri Aug 22, 2014 10:23 am 
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Hornet
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Joined: Thu May 02, 2013 10:40 am
Posts: 1175
Location: North Seattle sort of
captspillane wrote:
The 242 can be installed using your old driveshafts. The front will be exactly the same if you use the Eagle front yoke, which is shorter than the XJ version. The Eagle yoke bolts right on and the front half of the casting is nearly identical with all the same dimensions up forward.

In the back of the 242 you have a slip joint where the Eagle used to have a solid yoke. If you keep the slip joint in your original driveshaft it will be too much available travel and the driveshaft will fall out of the vehicle. The Eagle slip joint comes apart pretty easily and a 3" piece of pipe slides snuggly over the splines. With that pipe in place the original driveshaft will work nicely. The balance of the shaft does not appreciably change and I did not have any vibrations from adding the pipe.


When we converted SOTE to 4x4 we used an SX4 shaft with a YJ slip yoke and a hose clamp on it. Then we found a double cardan shaft in my collection that was the right length. When Max98059 lifted it and put the XJ 8.25 in, it worked quite well.

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'87 Comanche 4x4 $3500 http://forums.amcevolution.com/viewtopic.php?f=16&t=1355
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