1998classic

The other day, I did a little muddin, and afterwards I noticed a vibration and/or a clunk right under my feet, just while taking off. Doesn't drive any differently, just some new noises. When I got home I checked underneath, and everything visible was as it should be. Only thing I've gotten told it could be so far was buildup on the front driveshaft, causing the vibe, and there doesn't appear to be any. Any other ideas as to what it could be.

Radi

Lower control arm trouble? Or perhaps:

TSB
NO: 21-09-98
SUBJECT: Transfer Case Shifter Noise
DATE: Jul. 31, 1998
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN NUMBER 21-02-97 REV. A, DATED, JULY 11, 1997, WHICH SHOULD BE REMOVED FROM YOUR FILE AND NOTE IN THE 1997 BOUND TECHNICAL SERVICE BULLETIN MANUAL, PUBLICATION NUMBER 81-699-98004. THE BULLETIN ADDS MODELS AND ADDITIONAL PARTS. THE CHANGES ARE HIGHLIGHTED WITH **ASTERISKS**.

SYMPTOM/CONDITION:
A thumping or creaking noise may be heard coming from the transmission tunnel area on acceleration or while driving over bumpy roads.

DIAGNOSIS:
Road test the vehicle, if the noise is present and there are no worn or damaged parts relating to the transfer case shift mechanism, perform the Repair Procedure.

PARTS REQUIRED:
Qty Part No. Description
1 04886481AA Repair Kit, Transfer Case Shifter(ZJ/ZG)
**1 05014148AA Repair Kit, Transfer Case Shifter(TJ/XJ)**


REPAIR PROCEDURE:
This bulletin involves installing a transfer case shifter repair kit.

Disconnect the shift rods from the torque shaft.
Remove the torque shaft by prying the shaft out of the green torque shaft bushing in the transmission bracket. (Refer to Figure 1) Install new bushings on the torque shaft for XJ and TJ.
Remove the bronze bushing/retainer and rubber gasket from the body bracket.
Remove the green torque shaft bushing from the transmission bracket and install the new bushing supplied in the kit.
Insert the new gasket into the body bracket.
Install the bronze bushing/retainer and tightening the screws to 5 N•m (45 in. lbs.).
**NOTE: TJ AND XJ MODELS USE THE ORIGINAL TORQUE SHAFT WITH THE NEW PARTS SUPPLIED IN THE XJ/TJ KIT. ZJ/ZG REQUIRE REPLACEMENT OF THE TORQUE SHAFT WHICH IS SUPPLIED IN THE ZJ/ZG KIT.**

Slide the boot on to the torque shaft and apply multipurpose grease ( MOPAR p/n 04318063 or equivalent) to the area that the bronze bushing will contact.
Install the torque shaft and seat the boot on the bushing retainer flange.
Connect the transfer case shift linkage and adjust as necessary.
POLICY:
Reimbursable within the provisions of the warranty.

CCKen

First, check out Radi's TSB. 2nd, grease the front drive shaft slip joint. 3rd, jack the left front wheel off the ground, and with the TC in 2WD, check the front drive shaft u-joints for slop.

I like your avatar.

rompnXJ

let it cool down, and then get under there and shake the exhaust around a bit. the exhaust on all 3 of my cherokees at some point has gotten loose and start clunking against the transmission crossmember

stock95sport(for now)

I'd grease up that slip yoke. My '95 isnt "user greasable" but it leaks fluid from the T. Case to lube it. mine clunked bad taking off from a stop or when braking hard and coming to a stop. My T.Case was BONE DRY!!! filled her up and that horrible noise i was VERY worried about was GONE immediately. your 98 should have the boot you can peel back and smash some axle grease into the DS splines.

CCKen

The '98 has a zerk fitting on the slip joint to grease it.

stock95sport(for now)

I knew they had a Zerk on the front, but not for the rear driveshaft, which is the one I was referring to. But I DEFINITELY could be wrong, i learn new stuff everyday! or try to

1998classic

Wow, I hadn't checked this in a while haha. Thanks to all for all the feedback, I'll look at it more tomorrow afternoon and try greasing the slip joint and u-joint and look at the T-case linkage.

And thanks CCken

Crazy Amos

Where is this at??? I need to grease mine. Pretty sure I have greased everything but this...... Thought I got them all already.....

CCKen

Sorry, I was referring to the zerk fitting on the front drive shaft. on the '98, the rear drive shaft needs to be removed inorder to grease the splines - no zerk back there.

1998classic

Thanks CCKen, greasing the slip-joint worked out great