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np 242 hack n tap

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Old Mar 18, 2012 | 08:45 PM
  #1  
mmmmpankakes's Avatar
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From: MA
Year: 2000
Model: Cherokee
Engine: 4.0 L straight 6 cylinder
Default np 242 hack n tap

OK----so i have my jeep, thats getting lifted 4.5 inches this summer, and its a 2000 so im most definitely going to have to get a sye happening. BUT as you know i need to hack n tap this baby.

Thats kinda a plus for me, less money involved, i suffer from EPS (empty pocket syndrom)

Im also trying to get this setup of getting a stock front driveshaft after i get the hack n tap. I have some questions about this and if anyone could help me it would be greatly appreciated.

From my understanding the front stock driveshaft in an xj has double cardan joint ... so would i be getting something like this
?
http://www.4wheelparts.com/Drivetrai...07&t_pl=102860

OR am i supposed to get this

http://www.4wd.com/Transmission-and-...pn=R%2fERE1807

Im stumped. I want a sye that i can use on a stock front ds of an xj. if anyone could help THANK YOU
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Old Mar 18, 2012 | 08:48 PM
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From: Pasadena, MD
Year: 1987
Model: Wagoneer
Engine: Renix 4.0
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Yes you can use a front shaft with a hack and tap. And look to ironrockoffroad for yoir hack and tap. Or dirtbound. The first link is for a cv style joint, which is not a double cardan.
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Old Mar 18, 2012 | 09:20 PM
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From: South Bend, IN
Year: 1995
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goto jeephut.com, u can get a complete sye kit for about $160 to your door
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Old Mar 18, 2012 | 09:25 PM
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jakbob... so youre saying the 2nd link would work with the front stock ds? The description on that says to use it with a cv driveshaft. What im really asking is can i hook up a front stock ds to one of the sye... or do i need another part? i feel like im missing something how could a double cardan joint just bolt into a flange that is meant for a cv driveshaft
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Old Mar 18, 2012 | 09:34 PM
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Originally Posted by EVILXJ
goto jeephut.com, u can get a complete sye kit for about $160 to your door
not if you have a 242
I got all excited for nothing
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Old Mar 18, 2012 | 09:54 PM
  #6  
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From: Whittier, Ca
Year: 1989
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Engine: 4.0L
Default SYE from MIT4x4

I got my SYE for my 89' NP242 from MIT Mechanically Inclined Technicians back in 2003. I saw a small ad in JP Magazine. It was an outputshaft replacement with a core return. I didn't have to hack-and-tap. The hardest part was getting the C-clips off the shaft because the C-clips did not have the little holes in the ends for the snap ring pliers. I did the replacement myself as I had access to a lift on base at the auto shop. Took me all day going real slow and careful. Again the longest part was trying to get those stinking C-clips off. The SYE is another one of those mods that is worth every penny. Make sure you use shims on your rear axle too.
http://www.mit4x4.com/
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Old Mar 18, 2012 | 09:57 PM
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Originally Posted by mmmmpankakes
jakbob... so youre saying the 2nd link would work with the front stock ds? The description on that says to use it with a cv driveshaft. What im really asking is can i hook up a front stock ds to one of the sye... or do i need another part? i feel like im missing something how could a double cardan joint just bolt into a flange that is meant for a cv driveshaft
Look at your front driveshaft where it connects to the transfer case. That is the kind of yolk you are hack and tapping onto the rear essentially. The front shaft is a double cardan not a constant velocity (cv) joint. Seriously, easiest route with everything you need besides the driveshaft would be the hack and tap off of dirtbound offroad or iron rock offroad. They have the correct yolk and everything. Even the bit for drilling the output shaft.
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Old Mar 18, 2012 | 09:59 PM
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Theres no need for the sye in a 242. The bolt that holds the yolk on doesn't encounter any force. Your driveshaft would slip apart before that bolt broke.
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Old Mar 18, 2012 | 10:18 PM
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Dirk Digler's Avatar
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Originally Posted by AVjeeper
I got my SYE for my 89' NP242 from MIT Mechanically Inclined Technicians back in 2003. I saw a small ad in JP Magazine. It was an outputshaft replacement with a core return. I didn't have to hack-and-tap. The hardest part was getting the C-clips off the shaft because the C-clips did not have the little holes in the ends for the snap ring pliers. I did the replacement myself as I had access to a lift on base at the auto shop. Took me all day going real slow and careful. Again the longest part was trying to get those stinking C-clips off. The SYE is another one of those mods that is worth every penny. Make sure you use shims on your rear axle too.
http://www.mit4x4.com/
Doesnt look like you can order off the site...? You remember what you paid?
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Old Mar 18, 2012 | 10:39 PM
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wait... what do you mean NO NEED? wouldnt lifting 4.5 inches cause driveline vibes? and exactly what you said, my ds would slip open... what do you mean no need haha
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Old Mar 18, 2012 | 10:50 PM
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and this http://www.dirtboundoffroad.com/feat...bound-offroad/

ok so you were right about dirtbound it says right there use this with a stock front ds... THANK YOU

but why does it say "Verify your 242 case has the 27 spline output shaft. These applications will require a custom length driveshaft."


by custom length does that mean i cant run the stock front ds setup?
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Old Mar 19, 2012 | 12:13 AM
  #12  
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Originally Posted by jakbob
Theres no need for the sye in a 242. The bolt that holds the yolk on doesn't encounter any force. Your driveshaft would slip apart before that bolt broke.
I'm really not sure what you mean... I will certainly tell you that If I lift my jeep any higher than it is now (3") my 242 needs a sye to fix the drive shaft angle. Maybe I could come up with another way of getting a slip yoke on a double cardian set up but that doesn't make much sense to me
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Old Mar 19, 2012 | 12:17 AM
  #13  
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Avjeeper thanks for the info, if you don't mind me asking how much did they charge?
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Old Mar 19, 2012 | 12:26 AM
  #14  
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Pick up one of these and be happy.

http://www.ironrockoffroad.com/Merch...egory_Code=XDT

Proof: Running this combo on mine(np231) and my buddy's(np242) XJ both with 6.5" long arm and 35's. Zero problems.
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Old Mar 19, 2012 | 07:00 PM
  #15  
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Dude that looks freakin sweet and did you go with the refurb or the new drive shaft
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