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Unread 09-18-2012, 05:17 PM   #1
doomi
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242 transfer case question.

I am in need of a new transfer case. Right now I have the 247, but if I'm going to replace it I'd much rather go 242.


I found a 242 locally that came off of a 2002 4.7L with Selec-Trac. When I went to pick it up the tag says 242 J. I was under the impression that the 4.7L came with the 242 HD. Is this just certain 4.7's that do? If it is in fact a HD will it say so on the tag, instead of "j"?

I know normally when you swap in a 242 J that came off a 4.0L you have to do the drive shaft as well. Is this still the case if it came off of a 4.7?

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Unread 09-18-2012, 06:22 PM   #2
ZeJokee
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I work in belton! If it was a 242 from a 4.7l it could be either at HD or a normal 242. If it bolts up to a 4.7 I wouldn't worry. The normal 242 is plenty strong enough for the 4.7l. Be a good idea to get the drive shaft from the donor vehicle just incase.
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99 WJ Ltd, Blacked out, 4.7L, 242j Swap, 2'' BB, 245/75/16 Kuhmo Venture AT KL78, Flow Master Super 40, MagnaFlow high flow Cat, Akebono caliper upgrade, Addco rear swaybar, Westin brush guard, Moog Super Trail Boss, Rancho RS5000, Rola roof rack with dual kayak J hooks, PAC-AOEM-CHR, Sony Xplod 1200w amp, 2 Sony Xplod 12'' subs, 118,XXX miles (SOLD)
93 ZJ Ltd, Blacked out, 5.2L, Reman 46RH, Reman 242 Swap, 3.5'' IRO + 2" BB, 33x12.50r15 Mud Claw MTX radials, Bushwacker Flares, 216,XXX miles (Still parked in NC)
04 F-350 SD Crew Cab FX4 Lariat, 6.0 PSD SRW, Head studs, AFE Stage 2 SI Pro Guard 7 intake, Blue Spring mod, 150,XXX Miles

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Unread 09-18-2012, 07:19 PM   #3
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The rear ds HAS to be swapped with the one from the donor. The front will.be fine as long as the front output shaft yoke is the same on the tc. If it's not, swap the yokes. Also, if it came out of a 4.7 it is an hd. The j on the tag means nothing. To verify it came from a 4.7, it will have about 1.5 inches of input shaft exposed and have an aluminum tail cone covering the slip yoke.
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Unread 09-18-2012, 07:21 PM   #4
ZeJokee
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Quote:
Originally Posted by ezflip View Post
The rear ds HAS to be swapped with the one from the donor. The front will.be fine as long as the front output shaft yoke is the same on the tc. If it's not, swap the yokes. Also, if it came out of a 4.7 it is an hd. The j on the tag means nothing. To verify it came from a 4.7, it will have about 1.5 inches of input shaft exposed and have an aluminum tail cone covering the slip yoke.
Not necessarily. The owner of the donor vehicle might of swapped in a 242J at some point. Not likely but possible.
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99 WJ Ltd, Blacked out, 4.7L, 242j Swap, 2'' BB, 245/75/16 Kuhmo Venture AT KL78, Flow Master Super 40, MagnaFlow high flow Cat, Akebono caliper upgrade, Addco rear swaybar, Westin brush guard, Moog Super Trail Boss, Rancho RS5000, Rola roof rack with dual kayak J hooks, PAC-AOEM-CHR, Sony Xplod 1200w amp, 2 Sony Xplod 12'' subs, 118,XXX miles (SOLD)
93 ZJ Ltd, Blacked out, 5.2L, Reman 46RH, Reman 242 Swap, 3.5'' IRO + 2" BB, 33x12.50r15 Mud Claw MTX radials, Bushwacker Flares, 216,XXX miles (Still parked in NC)
04 F-350 SD Crew Cab FX4 Lariat, 6.0 PSD SRW, Head studs, AFE Stage 2 SI Pro Guard 7 intake, Blue Spring mod, 150,XXX Miles

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Unread 09-18-2012, 07:23 PM   #5
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Quote:
Originally Posted by ZeJokee

Not necessarily. The owner of the donor vehicle might of swapped in a 242J at some point. Not likely but possible.
That's why I ended with the method of verifying But the 4.7 did only come from the factory with the hd, never the ld.
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Unread 09-18-2012, 07:24 PM   #6
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Indeed
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99 WJ Ltd, Blacked out, 4.7L, 242j Swap, 2'' BB, 245/75/16 Kuhmo Venture AT KL78, Flow Master Super 40, MagnaFlow high flow Cat, Akebono caliper upgrade, Addco rear swaybar, Westin brush guard, Moog Super Trail Boss, Rancho RS5000, Rola roof rack with dual kayak J hooks, PAC-AOEM-CHR, Sony Xplod 1200w amp, 2 Sony Xplod 12'' subs, 118,XXX miles (SOLD)
93 ZJ Ltd, Blacked out, 5.2L, Reman 46RH, Reman 242 Swap, 3.5'' IRO + 2" BB, 33x12.50r15 Mud Claw MTX radials, Bushwacker Flares, 216,XXX miles (Still parked in NC)
04 F-350 SD Crew Cab FX4 Lariat, 6.0 PSD SRW, Head studs, AFE Stage 2 SI Pro Guard 7 intake, Blue Spring mod, 150,XXX Miles

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Unread 09-18-2012, 11:09 PM   #7
doomi
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Quote:
Originally Posted by ZeJokee View Post
I work in belton! If it was a 242 from a 4.7l it could be either at HD or a normal 242. If it bolts up to a 4.7 I wouldn't worry. The normal 242 is plenty strong enough for the 4.7l. Be a good idea to get the drive shaft from the donor vehicle just incase.

Where do you work? If you are comfortable answering.


Quote:
Originally Posted by ezflip View Post
The rear ds HAS to be swapped with the one from the donor. The front will.be fine as long as the front output shaft yoke is the same on the tc. If it's not, swap the yokes. Also, if it came out of a 4.7 it is an hd. The j on the tag means nothing. To verify it came from a 4.7, it will have about 1.5 inches of input shaft exposed and have an aluminum tail cone covering the slip yoke.
So the rear ds has to be swapped whether it is the j or the hd? I was under the impression it was only with the j.

And just to verify there are no 242 TC's that are stamped with HD?

And if you don't mind, explain the bolded part like I'm 5 (a picture with parts labeled would be incredible as I'm a visual learner... But I know that's a hassle). I've never messed with TC's so I'm not 100% sure what I'm looking for on the input shaft and tail cone.

Thanks a million or the replies do far, it is greatly appreciated.

Edit: after further reading, I misunderstood on the rear drive shaft. I do now know I'll need one either way... still would like some clarification for telling the visual differences between the j and hd to avoid a bad purchase.
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Unread 09-19-2012, 08:08 AM   #8
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Quote:
Originally Posted by doomi View Post
Where do you work? If you are comfortable answering.




So the rear ds has to be swapped whether it is the j or the hd? I was under the impression it was only with the j.

And just to verify there are no 242 TC's that are stamped with HD?

And if you don't mind, explain the bolded part like I'm 5 (a picture with parts labeled would be incredible as I'm a visual learner... But I know that's a hassle). I've never messed with TC's so I'm not 100% sure what I'm looking for on the input shaft and tail cone.

Thanks a million or the replies do far, it is greatly appreciated.

Edit: after further reading, I misunderstood on the rear drive shaft. I do now know I'll need one either way... still would like some clarification for telling the visual differences between the j and hd to avoid a bad purchase.
Here are the two 242's i just swapped out. The one on the left is a HD and the one on the right is a LD. You can see the input shaft sticks out more on the hd. Also the HD has a 32 spline output shaft so you will need to count the ribs on the output shaft and make sure the drive shaft you use matches..

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Unread 09-19-2012, 08:10 AM   #9
ZeJokee
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Two versions of the NV242 are used in the WJ vehicles, NV242LD and NV242HD. The two transfer cases can be distinguished from one another by the rear output shaft retainer. The NV242LD uses a rubber boot to cover the rear output shaft, while the NV242HD uses a cast aluminum housing.

Now older 242j have cast aluminum housing so it is not a sure fire way to tell. Only true way to tell is to crack it opening the case up. Only reason you will need the drive shaft from the donor vehicle is A) the spline count on the rear output shaft is different that your current case. 32 for 242HDs and 27 for the 242J and 27 for the 247. B) the rear output shaft is longer or shorter than your current case.

Some 242Hd will be stamped "242HD'' The input shaft is what actually connects the t-case to your transmission. If the t-case you grab came from a 4.7l then it will bolt up to your 4.7l regardless if it is a 242J and 242HD. Personally it is a great find regardless if it is a 242J or 242HD.

I work out near the old Air Base.
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99 WJ Ltd, Blacked out, 4.7L, 242j Swap, 2'' BB, 245/75/16 Kuhmo Venture AT KL78, Flow Master Super 40, MagnaFlow high flow Cat, Akebono caliper upgrade, Addco rear swaybar, Westin brush guard, Moog Super Trail Boss, Rancho RS5000, Rola roof rack with dual kayak J hooks, PAC-AOEM-CHR, Sony Xplod 1200w amp, 2 Sony Xplod 12'' subs, 118,XXX miles (SOLD)
93 ZJ Ltd, Blacked out, 5.2L, Reman 46RH, Reman 242 Swap, 3.5'' IRO + 2" BB, 33x12.50r15 Mud Claw MTX radials, Bushwacker Flares, 216,XXX miles (Still parked in NC)
04 F-350 SD Crew Cab FX4 Lariat, 6.0 PSD SRW, Head studs, AFE Stage 2 SI Pro Guard 7 intake, Blue Spring mod, 150,XXX Miles

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Unread 09-19-2012, 08:36 AM   #10
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Just to clarify a few things here for the OP...

The input shaft has nothing to do with HD or LD. It's length has everything to do with fitting a V8 or I6 transmission. (v8 one is longer--one on left in gcjeeping's picture)

The drive shaft has to be swapped because the 242ld is a different length than the 247, and the 242HD has more splines on the output shaft, so you have to change the rear driveshaft regardless.

The HD has the aluminum tailcone, where the LD does not. Some LD are stamped 242J, some are 242WJ. Some HD are 242HD, some are 242J (we've seen proof on this forum)

Your front output yoke may need swapped if the replacement tcase has a different style front drive shaft. (very easy to do)
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Unread 09-19-2012, 08:38 AM   #11
ZeJokee
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Quote:
Originally Posted by narnwv View Post
Just to clarify a few things here for the OP...

The input shaft has nothing to do with HD or LD. It's length has everything to do with fitting a V8 or I6 transmission. (v8 one is longer--one on left in gcjeeping's picture)

The drive shaft has to be swapped because the 242ld is a different length than the 247, and the 242HD has more splines on the output shaft, so you have to change the rear driveshaft regardless.

The HD has the aluminum tailcone, where the LD does not. Some LD are stamped 242J, some are 242WJ. Some HD are 242HD, some are 242J (we've seen proof on this forum)

Your front output yoke may need swapped if the replacement tcase has a different style front drive shaft. (very easy to do)
Hmm, pretty much what I said in my previous post.
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99 WJ Ltd, Blacked out, 4.7L, 242j Swap, 2'' BB, 245/75/16 Kuhmo Venture AT KL78, Flow Master Super 40, MagnaFlow high flow Cat, Akebono caliper upgrade, Addco rear swaybar, Westin brush guard, Moog Super Trail Boss, Rancho RS5000, Rola roof rack with dual kayak J hooks, PAC-AOEM-CHR, Sony Xplod 1200w amp, 2 Sony Xplod 12'' subs, 118,XXX miles (SOLD)
93 ZJ Ltd, Blacked out, 5.2L, Reman 46RH, Reman 242 Swap, 3.5'' IRO + 2" BB, 33x12.50r15 Mud Claw MTX radials, Bushwacker Flares, 216,XXX miles (Still parked in NC)
04 F-350 SD Crew Cab FX4 Lariat, 6.0 PSD SRW, Head studs, AFE Stage 2 SI Pro Guard 7 intake, Blue Spring mod, 150,XXX Miles

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Unread 09-19-2012, 08:39 AM   #12
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Quote:
Originally Posted by ZeJokee View Post
Hmm, pretty much what I said in my previous post.
HA, I hit reply before your post was there.
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Unread 09-19-2012, 08:40 AM   #13
ZeJokee
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No problem mate!
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99 WJ Ltd, Blacked out, 4.7L, 242j Swap, 2'' BB, 245/75/16 Kuhmo Venture AT KL78, Flow Master Super 40, MagnaFlow high flow Cat, Akebono caliper upgrade, Addco rear swaybar, Westin brush guard, Moog Super Trail Boss, Rancho RS5000, Rola roof rack with dual kayak J hooks, PAC-AOEM-CHR, Sony Xplod 1200w amp, 2 Sony Xplod 12'' subs, 118,XXX miles (SOLD)
93 ZJ Ltd, Blacked out, 5.2L, Reman 46RH, Reman 242 Swap, 3.5'' IRO + 2" BB, 33x12.50r15 Mud Claw MTX radials, Bushwacker Flares, 216,XXX miles (Still parked in NC)
04 F-350 SD Crew Cab FX4 Lariat, 6.0 PSD SRW, Head studs, AFE Stage 2 SI Pro Guard 7 intake, Blue Spring mod, 150,XXX Miles

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Unread 09-19-2012, 09:26 AM   #14
doomi
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Quote:
Originally Posted by gcjeeping View Post
Here are the two 242's i just swapped out. The one on the left is a HD and the one on the right is a LD. You can see the input shaft sticks out more on the hd. Also the HD has a 32 spline output shaft so you will need to count the ribs on the output shaft and make sure the drive shaft you use matches..

That is exactly the visual I needed to be sure before I purchased. Thank you so much!

Quote:
Originally Posted by ZeJokee View Post
Two versions of the NV242 are used in the WJ vehicles, NV242LD and NV242HD. The two transfer cases can be distinguished from one another by the rear output shaft retainer. The NV242LD uses a rubber boot to cover the rear output shaft, while the NV242HD uses a cast aluminum housing.

Now older 242j have cast aluminum housing so it is not a sure fire way to tell. Only true way to tell is to crack it opening the case up. Only reason you will need the drive shaft from the donor vehicle is A) the spline count on the rear output shaft is different that your current case. 32 for 242HDs and 27 for the 242J and 27 for the 247. B) the rear output shaft is longer or shorter than your current case.

Some 242Hd will be stamped "242HD'' The input shaft is what actually connects the t-case to your transmission. If the t-case you grab came from a 4.7l then it will bolt up to your 4.7l regardless if it is a 242J and 242HD. Personally it is a great find regardless if it is a 242J or 242HD.

I work out near the old Air Base.
Quote:
Originally Posted by narnwv View Post
Just to clarify a few things here for the OP...

The input shaft has nothing to do with HD or LD. It's length has everything to do with fitting a V8 or I6 transmission. (v8 one is longer--one on left in gcjeeping's picture)

The drive shaft has to be swapped because the 242ld is a different length than the 247, and the 242HD has more splines on the output shaft, so you have to change the rear driveshaft regardless.

The HD has the aluminum tailcone, where the LD does not. Some LD are stamped 242J, some are 242WJ. Some HD are 242HD, some are 242J (we've seen proof on this forum)


Your front output yoke may need swapped if the replacement tcase has a different style front drive shaft. (very easy to do)
You guys have been an amazing help and this has really clarified everything. I read all the threads I could find on the swap, but still wasn't comfortable I had a firm grasp on everything. I can't thank you enough.

Last questions (hopefully). I do plan on cracking open the case to inspect it before installing. What will I need to buy to put it back together, just a gasket and ATF +4? And what do I need to look for inside besides obvious chunks/shavings of metal and a loose chain? Should the chain be extremely tight with no play?
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Unread 09-19-2012, 12:40 PM   #15
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Just RTV to put it together. Definetly a good set of snap ring pliers to pull it apart and put it together. There's really no need to take it apart other than to swap input shafts but since it is from the 4.7l you shouldn't have too. Or if you just want to open it up. Just look for metal shavings and check the chain make sure it is not extremely loose and everything is running smoothly in the case.

Here's a good tut for pulling it apart.
http://mallcrawlin.com/forum/showthread.php?8549-Basic-breakdown-of-the-NV242

http://www.ehow.com/how_2179550_disa...sfer-case.html
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99 WJ Ltd, Blacked out, 4.7L, 242j Swap, 2'' BB, 245/75/16 Kuhmo Venture AT KL78, Flow Master Super 40, MagnaFlow high flow Cat, Akebono caliper upgrade, Addco rear swaybar, Westin brush guard, Moog Super Trail Boss, Rancho RS5000, Rola roof rack with dual kayak J hooks, PAC-AOEM-CHR, Sony Xplod 1200w amp, 2 Sony Xplod 12'' subs, 118,XXX miles (SOLD)
93 ZJ Ltd, Blacked out, 5.2L, Reman 46RH, Reman 242 Swap, 3.5'' IRO + 2" BB, 33x12.50r15 Mud Claw MTX radials, Bushwacker Flares, 216,XXX miles (Still parked in NC)
04 F-350 SD Crew Cab FX4 Lariat, 6.0 PSD SRW, Head studs, AFE Stage 2 SI Pro Guard 7 intake, Blue Spring mod, 150,XXX Miles

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