Heavy metal rattling/vibration

[cruiserdan]

The clicking is the Birfield joints crying for help. You need to service the front axle. You may be able to save the joints if you act now.

I have around 375,000 km on my original joints. They have been serviced at ~96,000 km intervals. They are still good.

 

[suzuguru]

Glad you got your vibration figured out. The clicking noise when turning usually does indicate bad CV joints.

 

[77mustard40]

I had clicking birfs when I inherited my 80, but I also had a seized VC. I swapped them from side to side when I tore down the front axle and that worked for me. The day will come when they will need to be replaced and I’ll buy new drive flanges as well. Good luck with yours.

 

[thatcabledude]

The clicking is the Birfield joints crying for help. You need to service the front axle. You may be able to save the joints if you act now.

I have around 375,000 km on my original joints. They have been serviced at ~96,000 km intervals. They are still good.

This, plus I would swap the birfield from side to side.

 

[cruiserdan]

This, plus I would swap the birfield from side to side.

I am not a fan of removing the Birfields from the inner axles. The process is quite violent . Needing to deliberately hammer something like a precision joint apart does not appeal to me. I have also had personal experience where we could not get a short side apart no matter how hard we hit it. Including the pipe trick.

Mine have been spinning in the same direction the entire time.

 

[CharlieS]

I am not a fan of removing the Birfields from the inner axles. The process is quite violent . Needing to deliberately hammer something like a precision joint apart does not appeal to me. I have also had personal experience where we could not get a short side apart no matter how hard we hit it. Including the pipe trick.

Mine have been spinning in the same direction the entire time.

What kind of service have you done to extend the longevity? Just standard birf servicing?

 

[cruiserdan]

What kind of service have you done to extend the longevity? Just standard birf servicing?

Front axle services every~60-80 thousand miles. Including trunion bearing replacements every time. The last job was last year at 225,000 miles. At that time I replaced the original spindles and drive flanges, along with new wheel bearings. I had slop between the flanges and the Birfields. All the wear was in the flanges. They are deliberately softer than the Birfield splines.

 

[schmidtchen98]

So the 80 is at the shop today to get the new U-Joints pressed in and the DS rebalanced as i dont think the weights on it are doing good work right now after i changed the allingement on them.

Will report later how it turned out.


So the next big thing is the front axle.

As i said, when i go full lock and accelerate a little harder, i get these clicking sounds. When I go slow i dont get it (or at least I cant hear it).


Also after washing my car after we were on a track this weekend, i noticed water coming out of my front left CV/Birfield (?) ... Diff breather are working properly ( i think ).

Ive attached a like for a Video ive made of it leaking.

Maybe its got something to do with the clicking? And maybe it sucked in water through the unsealing sealing? Cause i haven´t had this clicking before this trip.
But I also wasn´t wheeling the car much after putting the 80 on 35´s because of the DS vibrations. Maybe this and the new weight plus 260.000 km made them End now?


Here is the link for the Video:

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Cheers