metallic clacking sound

[JeepinLA Eh]

I am goin nuts tryin to figure out this sound..a while back I added a rear coil relocation kit to my 04 rubi which has made a huge difference in handling but i suspect after re-adjusting the rear driveshaft (CV) i am noticing this sound on acceleration.......if i lower the pinion anymore i get a duller lower clunking.....any thought? I did remove the driveshaft and it moves freely and is greased.....

[Jeeperator]

I wonder if your hearing the chain slap in the tc. Which will make some noise.

[aw12345]

Remove the rear driveshaft and drive it in 4wheel drive see if the noise goes away. The CV joint on the driveshaft can make some god awfull noise.

[Dukes69]

What does the pinion angle look like now? I had a driveshaft make a horrid noise, swapped it for a spare and noise went away. The DS was tight and freshly rebuilt a while back. That would be my first bet.

[JeepinLA Eh]

Got an angle finder and gonna go to it tomorrow morning. I had the shaft lined up just under the rear output at t-case. Will remove the driveshaft first and see what happens....damn jeep has had me chasing my tail!!!!

Thanx for the advice

[JeepinLA Eh]

so I have checked my angles and the driveshaft is at 18 and axle at 17......i guess i check the ujoints and CV? Still get that metallic clacking especially when i get on the gas. It may be time for someone more experienced!! I am missing too much wheeling!!!! If anyone knows of a reputable 4wheel shop near Sherman Oaks I'd appreciate any recommendations!

[aw12345]

Did you take the rear driveshaft out yet and try to drive it in 4wheel drive without the rear driveshaft?
I would do that before anything else

[JeepinLA Eh]

Yeah drives quiet without the rear shaft and after re inspecting it the CV is shot!!!

[aw12345]

Is the most common problem

[Kodiak Spirit]

Tom Woods has a cure for that... :devil:

[JeepinLA Eh]

Hahahahaaaa!! Ordered one yesterday!!

[6spdYJ]

What's the procedure to check the center pin on a double cardan?

[aw12345]

It's genera;;y the centering ball and the cup it runs in that fails when you run it much after that, the needle bearing in the centering ball will fail and destroy the centering pin. That is when it gets costly if you continue on from there the whole thing will weld it self together and on a front shaft it will break the transfercase and do a whole lot of damage

[6spdYJ]

Is any play discernable by hand, or does it require a press/jig/lathe?

[aw12345]

Once it's apart you can tell what is wrong, otherwise really hard to tell except for the sound it makes