Anybody got an idea why this front propshaft is loud?

 

I'd try shimming it with some washers, squirt plenty of WD40 in there and see if gets any quieter......Ben

 

Maybe I could JB weld the center bolt back on.... I hope this does not get dissolved by the WD40?

 

No problem...This is why you save the brake dust from inside your brake drums when you reline them...It thickens the WD40 allowing it to lubricate as well as fill in the small openings in the JB Weld...You can thank me later......Ben

 

Thanks Ben, but unfortunately I have lost all the magic dust from out of my drums. An unfortunate accident while trying to reinforce my concrete bedliner...

 

We live and learn, Markus...I poured my bedliner over some leftover barbed wire from a fence project around my house for extra strength...But I didn't buy enough RediMix so now I have a few exposed barbs poking through the top...But at least people quit asking me to haul mattresses for them...Next time we should both try planning ahead a little more......Ben

 

Ouch, how did you conclude it failed?

 

No conclusion as to how and why yet.
Got it in as " refurbished" shaft having been mounted on truck and then shaft noise at first use of 4WD.
All u-joints were new from the look of it, some clip missing.
Maybe using a big press to get out the joint caps somehow they sheared the center pin?
Or maybe the shaft got rebuilt after a catastrophe and nobody looked at the center?

 

I had a front driveshaft double cardan joint fail on me while on the freeway. It was getting noisy and without warning (other than the prior "noise") turned into about 2 seconds of violent rumble and then a slam and then a bang and then quiet.
What happened is when the DC broke the shaft swung around like a bat until the yoke snapped. But during that brief moment of violence, it bent the frame, hammered a crack in the transmission, and pushed up the floorboard. I was just lucky it didn't pogo up under the truck and fly through the floor or cause any numerous other things it could have done during its moment of fury.
So anytime someone talks about their noisy front driveshaft I say ignoring it can get expensive...

 

Anybody got part numbers for the u-joints of the double cardan joint? Should be non greaseable, and robust.