Loose, Clunking Driveshaft.

[PieEyedPiper]

When I engage my clutch or give the car some gas I can here a kind of "clack" or "clunk" from underneath the car. I can feel it right through the floor and from feedback in the clutch and gas pedals.

I have ruled out carrier bearings. Mine are in good shape and I could not get the driveshaft to hit the floor of the car nor hit the top of the CB's no matter how hard I pushed.

I had the car up on jackstands and found that my driveshaft was "loose". It has about 1/2 to 1 full inch of travel in either rotational directions. I can easily turn it by hand, and when it finally "catches" or hits whatever is supposed to secure it I hear the same sound that I get when I drive.
A single, but noticable, clack or clunk.

The sound is coming from where the driveshaft enters the transfer case (forigve me if I've misnamed something, I'm completely drivetrain inept).

Here is a thread further outlining my investigation:
http://www.dsmtuners.com/forums/showthread.php?t=224229

I could use some help!!
Thanks!

 

[PieEyedPiper]

Well i also have massive drivetrain clunk, i filled the carrier bearings with silicone and it didnt help my clunk problem.

my friend also had the same problem he rebuilt his driveshaft, with a new yoke, and new ujoints and new nuts and bolts, ended up costing him around $150, and took all the slop out of his driveshaft and eliminated the clunk.

www.vfaq.com can show you how to rebuild the driveshaft yourself


and somthing else you might want to consider, he bought new carrier bearings but ended up using his old silicone bearings and they worked out fine.

i know were i am putting my next $150

goodluck and PM me with any questions

I'm glad your friend had success for relatively little cash. I'm just not convinced my problem is with the driveshaft itself. But at this point I still have no clue. Now it's starting to sound like my VC or center diff that would be causing these issues. Definitely let me know how your repair goes!

 

[cfisher]

I'm glad your friend had success for relatively little cash. I'm just not convinced my problem is with the driveshaft itself. But at this point I still have no clue. Now it's starting to sound like my VC or center diff that would be causing these issues. Definitely let me know how your repair goes!

I just changed out my fluids in the rear and there was metal flakes in it.WTF