Another drivetrain noise. Ideas?

[jeeptorino68]

It's kind of a light thumping rotating type noise. Seems to be set off by a bump or something in the road. Then can be stopped by hitting the brakes, lightly, not a lot of braking is required, no shaking in the steering wheel. No vibrations. Not death wobble.

 

[tommudd]

It's kind of a light thumping rotating type noise. Seems to be set off by a bump or something in the road. Then can be stopped by hitting the brakes, lightly, not a lot of braking is required, no shaking in the steering wheel. No vibrations. Not death wobble.

Front / rear/ center can you tell?

 

[jeeptorino68]

Sorry, seems like the front.
Have had both c.v. shafts replaced in the last year (used the Napa remans) unfortunately when I picked up the jeep from having those replaced they decided not to do the intermediate shaft because it looked fine, even though I had supplied the new part...
Also replaced the c.v. on the front driveshaft...don't remember which end

 

[HoosierJeeper]

I could see the intermediate shaft causing that noise. When mine was bad I used to get a light thumping rotational noise at very specific speeds on the highway- like at 66, 72 etc. For a year or two I thought it was a tire balancing issue. Sounded/felt quite similar.

Also used to have nasty clunk from the front when it was bad, but it wouldn't make the rotational noise after hitting a bump.

It's normal to have a little amount of play, but if you move it around it shouldn't move enough to make any noise.

 

[jeeptorino68]

Here is a video of me moving the passenger cv where it connects to the intermediate shaft. I think that's too much play...what do you think.
https://youtu.be/tdxRRCKXX2k

 

[HoosierJeeper]

Yeah that's too much. That's about where mine was when I replaced it.

 

[tommudd]

Yes intermediate shaft is toast
Better replace the CV again as well since it will have the splines worn on it as well . That way you'll be good for quite some time

 

[uss2defiant]

ah... i guess i should be checking mine for my issue as well just in case.

 

[jeeptorino68]

*sigh* I knew I should have made the shop that did the front cv shafts install the intermediate too, they didnt when doing the other shafts because they said it was a "non wear item" ug

Now, how do I convince my wife I also need the jba upper arms, top plates, and more rear iso spacers while I'm doing this...hmmm

 

[smittyfromPA]

Here is a video of me moving the passenger cv where it connects to the intermediate shaft. I think that's too much play...what do you think.
https://youtu.be/tdxRRCKXX2k

uh-oh, mine has almost that much movement too and makes a little clicking noise when i move it. :icon_eek:

Cant detect any additional noise when driving but with the mud tires its pretty loud anyway. I also had the CV replaced about 7000 miles ago and the shop told me that the intermediate shaft looked fine.

 

[tommudd]

*sigh* I knew I should have made the shop that did the front cv shafts install the intermediate too, they didnt when doing the other shafts because they said it was a "non wear item" ug

Now, how do I convince my wife I also need the jba upper arms, top plates, and more rear iso spacers while I'm doing this...hmmm

Non Wear item ????:happy175::happy175:
Now thats the best joke I heard all day
Man some of these places are a real joke

 

[tommudd]

SO ANYONE REPLACING A RIGHT SIDE CV
do your self a favor and replace the intermediate shaft as well
no matter what some shop tells you
Lesson learned the hard way for some

 

[uss2defiant]

so if changing a CV replace the intermediate shaft too?

 

[tommudd]

so if changing a CV replace the intermediate shaft too?

NOT SURE ABOUT OTHERS
BUT Most every one I have seen is
A) rusted to the CV so bad they come out together and need replacing due to the rust , splines rusted/ pitted
or
B) splines on both the Intermediate shaft and the CV are worn enough that if you replace one the other will be gone in short order
So I have always replaced both and then you are sure
Cheap insurance in my book

 

[JeepinJarhead03]

lol last time i replaced my intermediate, i handed the napa boys my intermediate core and a passenger cv at the same time cause i strapped it up and put about 15 tons on it and hit it with a sledge about 30 times and that sucka mule wouldnt separate lol

but hey.. atleast the intermediate tends to do its wear and or "damage" on the cv end.

 

[jeeptorino68]

I think rockauto had the best price on the intermediate when I bought mine