94 Grand Cherokee Without front drive shaft - JeepForum.com

 
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post #1 of 9 Old 04-22-2009, 06:17 PM Thread Starter
littlefdl
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94 Grand Cherokee Without front drive shaft

Hey, i just bought my 4.0 Cherokee and i have noticed that its missing the front drive shaft. Previous owner said the transfer case was bad and it makes a ''tapping'' noise when in 2wd. When in 4wd it's quiet as can be. Is it unsafe to drive in 4wd without the front driveshaft?


Last edited by littlefdl; 04-22-2009 at 06:40 PM.
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post #2 of 9 Old 04-22-2009, 06:26 PM
micifus
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well it's particularly bad for the AWD cases. Clearly there is something wrong with the TC so you will have to look into getting another any way. You basicly bought a 2WD GC

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post #3 of 9 Old 04-22-2009, 06:31 PM
YJMCBoy
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since the PO said theres a tapping sound and you already have a 2wd option on the existing Tcase, I would start looking for a 242 in the local boneyard- it will probably be cheaper than fixing yours. While youre at it look for a front driveshaft. my .02

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post #4 of 9 Old 04-22-2009, 06:32 PM Thread Starter
littlefdl
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I understand, i just wanted to make sure it wasn't straining the Transmission. It not a big deal as of now to me since i dont plan on taking it off-road. Its my DD
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post #5 of 9 Old 04-22-2009, 09:04 PM
crashcraddock
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Quote:
Originally Posted by micifus View Post
well it's particularly bad for the AWD cases.
How sure are you of this? Why would it hurt the TC, the output shaft would still be spinning. Plus you can turn sharper too.
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post #6 of 9 Old 04-23-2009, 12:19 PM
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Because on the 249 transfer cases (AWD only) 1995 and previous the connection between the input shaft and output shafts was through a viscous coupler. This is what let you have power to both axles, yet still be able to turn without binding the drive train up.

In the older version (pre-1996) BOTH shafts were viscous coupled. It was determined that when the viscous coupler started wearing out it would lock the two shafts together. Upon further wear, it would actually allow a vehicle parked on a hill without the e-brake to roll away. My local 4X4 recycler had it happen 5 times in their parking lot over the years. In 1996 they changed the setup so there was only viscous coupling to the front and a hard connection to the rear.

Taking out the front driveshaft on the older version would let the front output spin free burning up the viscous coupler rather quickly. Picture a limited slip differential moving a vehicle with only one tire on the axle touching the ground. It will move, but eventually you're going to burn it up.

But in your case if you have a 2WD option on the selector plate it sounds like you have either a 231 or a 242 already. If you have the 4WD full time option you have the 242.

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post #7 of 9 Old 04-23-2009, 02:31 PM Thread Starter
littlefdl
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Im sorry i didnt mention that my TC has 2WD, 4WD part time etc. No 4WD fulltime. Its a 94 GC 4.0. I drive it in 4WD Part time so the case doesn't make the tappin sound as it did in 2wd.
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post #8 of 9 Old 04-23-2009, 04:44 PM
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Then you have a model 231 transfer case. The noise you are hearing is probably either a worn out chain or the front output bearing. Either that or the shifter linkage is slightly out of adjustment and one tooth on the gear is clicking.

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post #9 of 9 Old 05-03-2009, 09:24 PM
Midnightluckey
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Okay.. I think my VC is going out on my 95, and i am experiencing every one of the symptoms you guys are complaining about, but, when it clunks/lurches/jumps, my transfer case (and lever) like to jump into neutral.. Could this be something else? Or is that what you guys are talking about it being like your in 4wd all the time? And that it eventually will just jump all the way into low and stay there?

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