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Old 11-13-2014, 06:29 PM
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4x4 Clicking/Slapping Issue

Hey,

So, I am new member to the forum (but have definitely referred to it in the past) and I am having some 4x4 issues on my 2008 3.8L 4door Wrangler. This is what I can tell you:

-While in 2wd everything works perfectly fine
-Engaging 4x4 and starting to move creates a relatively loud clicking/slapping sound coming from, what appears to be, the front end but not on one specific side
- I ran into a situation where unfortunately I HAD to try and use my 4x4, regardless of the clicking, and all 4 tires spun and I got out.....so 4x4 is still engaging/partially engaging (if that is even possible)
-The sound appears on any and every surface and does not amplify or change when turning left or right
-The clicks/slaps are intermittent and the rate of clicks/slaps increases with speed (I have dealt with chains slipping in transfer cases, but it doesn't really sound the same...I am definitely no professional though)

I am relatively new to all of this, but I was thinking maybe vacuum lines, transmission mounting bracket, or possibly a U-joint issue. Any ideas and advice would be greatly appreciated! It is officially winter in my neck of the woods with snow on the ground and I NEED my 4x4!! I am also hoping that the issue at hand is something that a quality socket set, some parts, and half a brain can fix!!!


Thanks in advance for any information/advice/solutions you might have!!

Cheers,
ttpower

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Old 11-13-2014, 07:16 PM   #2
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How does the driveshaft joints look ?

If nothing is obvious. I would pull the diff cover and check the gearing.

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Old 11-14-2014, 03:27 PM   #3
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I had same issue, mine was a torn cv joint boot on the rear of front drive shaft that in turn leaked out all grease and made it click. You can get a cv joint repair kit on eBay for 80 bucks. I am not sure why it is a repair kit because it is the entire cv joint. 4 bolts on front of drive shaft, about 8 or 10 on cv joint, a pair of snap ring pliers, and some latex gloves is all you need.
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Old 11-14-2014, 06:43 PM
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I can definitely check that out, but what exactly should I be looking for? Also, I have never taken off my diff cover before, is there anything I should be aware of prior to taking it off? Will I need a new seal to put it back on? Or can I simply drain it, pop the bolts and take a look?

Sorry for all of the questions, but I am always worried about farking something up!

Thanks again
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Old 11-14-2014, 06:52 PM   #5
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Look where the driveshafts meat the transfer case. Usually the rubber boot will split and sling grease around the joint and onto the heat shields. Your looking for missing/broken teeth on the large gear when you pop the cover.
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Old 02-10-2015, 07:41 AM   #6
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definitely the rear cv joint at the transfer case for your front drive shaft.. i had similar issues...$85 later I had a rebuild kit in my hands in 2 days https://www.youtube.com/watch?v=BRAPXMxSPgs
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Old 02-11-2015, 09:20 AM   #7
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I like the idea that you can rebuild that CV Joint do Chrysler or any of its dealers offer this service? All I ever see is shinny new pictures of new drive shafts.
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Old 02-11-2015, 09:23 AM   #8
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Originally Posted by socalrider View Post
I like the idea that you can rebuild that CV Joint do Chrysler or any of its dealers offer this service? All I ever see is shinny new pictures of new drive shafts.
Most likely no since its not a factory rebuild kit.
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Old 02-11-2015, 02:30 PM   #9
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Yeah it was an aftermarket kit from the company Dorman..i found this one new on ebay for $85..messy but relatively clear cut and simple on removal and installation
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Old 02-11-2015, 03:40 PM   #10
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Originally Posted by Schitbrick3633 View Post
Yeah it was an aftermarket kit from the company Dorman..i found this one new on ebay for $85..messy but relatively clear cut and simple on removal and installation
Doesn't crown make kit too?
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Old 02-11-2015, 04:21 PM
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Hey!
I know this is long due, but thanks for all of your help. It was the cv joint on my front drive shaft. I just got it fixed a couple of weeks ago. I ended up figuring out what it was (thanks to your help!), but I brought it to my mechanic just to make sure that was for sure the only issue...Long story short he told me it needed a "custom rebuild" and by the time I got the shaft back on with two rebuilt joints I accumulated appx. an $800 bill!!!! When I asked for a part number to do it myself the response was "no, it has to go out for a custom rebuild". Is there anything else that could have needed to be 'rebuilt' besides the two joints? The only positive was that the shaft was back in 2 days before a foot of snow showed up...
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Old 02-11-2015, 04:39 PM   #12
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Quote:
Originally Posted by ttpower View Post
Hey! I know this is long due, but thanks for all of your help. It was the cv joint on my front drive shaft. I just got it fixed a couple of weeks ago. I ended up figuring out what it was (thanks to your help!), but I brought it to my mechanic just to make sure that was for sure the only issue...Long story short he told me it needed a "custom rebuild" and by the time I got the shaft back on with two rebuilt joints I accumulated appx. an $800 bill!!!! When I asked for a part number to do it myself the response was "no, it has to go out for a custom rebuild". Is there anything else that could have needed to be 'rebuilt' besides the two joints? The only positive was that the shaft was back in 2 days before a foot of snow showed up...
Stock shaft? ... You could've bought one for half of that. Or found one used for $50-$100
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Old 02-11-2015, 04:47 PM   #13
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Originally Posted by kjeeper10 View Post
Doesn't crown make kit too?
Not real sure, I dont guess I saw any of those

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