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Old 12-01-2012, 12:42 PM   #31 (permalink)
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Spoke to soon...it appears as though the vibration through the car is less, but the noise is still present. I really wish I could find a driveshaft that was in a vehical that I know works just to try it.
I guess I need to open up the rear end and take a look... out the axles come again.

I noticed that inside the transfer case there is a set of needle bearings that run on the OD of the input end of the driveshaft. Could it be possible that the OD of the input shaft of the driveline is worn down? IS ther ea size or tolerance for this?
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Old 12-01-2012, 01:22 PM   #32 (permalink)
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Oh man, I just posted my disappointing results a while ago in my thread. Getting nuts, isn't it?

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Old 12-01-2012, 01:52 PM   #33 (permalink)
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Yes...Very..
Here is a vidoe clip of what it sounds like as of today...

Driveline replaced...still noise?? - YouTube
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Old 12-01-2012, 02:08 PM   #34 (permalink)
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found this videdo.....sounds similar at around 3:08 in the video..but my pinion bearing seems solid and has no play. Also only makes the sound afterl 60Km/hr. Prior to that its pretty quiet.
https://www.youtube.com/watch?v=o3TO2cF23YI

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Old 12-01-2012, 02:22 PM   #35 (permalink)
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I'm at 45 mph when it begins, varies with road and throttle, and at 57 mph it's constant and a full growl.

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Old 12-01-2012, 02:26 PM   #36 (permalink)
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60Kmh is about 42mph. Same here..
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Old 12-01-2012, 02:27 PM   #37 (permalink)
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Just checked out the vids. My problem is different in that it's a growl rather than mechanical chattering. Other than that we seem to be battling the same monster.

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Old 12-01-2012, 08:44 PM   #38 (permalink)
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Yes the unbalanced/bent shaft may have damaged to T/C output.

This is where I set up the ChassisEar and do a run.... Philip
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Old 12-01-2012, 09:18 PM   #39 (permalink)
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The T/C is *new* and was only run with the bent driveshaft for maybe 2 min worth of driving on stands. I replaced it thinking it was the problem. I am wondering though if the driveline end is undersize, meaning there may be too much clearance between the OD of the driveline and the ID of the needle bearings in the T/C output housing. Not sure what the size should be. If I new the ID size of the needle bearings I could come up witha rough number...I do know that the driveline slides in easy and I dont have to wiggle or anything to make it go..maybe too much clearance..
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Old 12-03-2012, 10:31 PM   #40 (permalink)
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OK...Good News....it seems that it may have been the driveshaft afterall.
I decided to take it off the jackstands and go for a spin to see what I hear when things are tighter under load rather then free wheeling on stands. Sure enough..she runs smooth on the highway..no noise, no shudder, no grinding. Not sure why it sounds like its gonna blow up on the stands...but im not looking a gift horse in the mouth. Ill drive it for a few days and put a few miles on her and see how things go. If anything changes i'll post info for others to read.
Now to figure out why my starter slow cranking and is sparking to the block....but thats another thread for another day
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