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Q: Clunking sound when I stop vehicle and then resume. Happens mostly at intersections on 2004 Jeep Grand Cherokee

I have noticed a clunking or rather on single clumk when I come to an intersection stop and then it clunks as I accelerate and resume moving. It does not do it all the time but at least 50% of the time. To me it seems like it as if the whole frame of the vehicle is sliding back as I hit the gas. I was wondering if this is a problem with transmission, or possibly rear axil or if this is something that you have heard of before?
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I 1999 Jeep Grand Cherokee Limited with the 4.7 does the sdame thing. Technical Service Bulletin number 03-04-00 address this issue. Axle & propeller shaft. What is happening is the spline joint on the drive shaft is not sliding like it should. The new part is nickel plated so it does not rust. It is binding between the splined surfaces of the rear propeller shaft slip yoke and the rear output shaft of the transfer case or the transmission. If you want, send me your email address and I will send you a copy of the TSB, Basically a Chrysler screw up.
I don't believe that it does any damange. It is the fact that the drive shft does not slide like it should on the spline shaft. If you have ever replaced u joints you would see how the spline shaft sides in and out to take up the very motions that is happening at once when you start or stop. You would never even know it moves if it was not probably corroded. They are usually greased and move in and out. I am not going to replace mine till I get new u joints and I will probably do it myself. Those dealers parts are over priced and are the after market are usually as good as the OEM stuff. I will send you the copy via e mail.
Thanks for responding to my question that would be great if you would send a copy of the TSB. So what does that mean as far as do I need to replace it asap or is it causing further damage or is what is done, done and it will not damage anything else?
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