2005 OB auto

Noticed past few weeks, only in reverse.

Seems to be coming from mid car and not wheels.

Universal joint?
Are they serviceable on this model/year?

If it happens once per wheel rotation it's brakes or such.

If it happens 4x per wheel rotation it's a u-joint.

 

If it gets faster in rhythm much faster than you speed up, that is 4x wheel rotation, it's pretty noticeable.

 

only happens in reverse...

if u-joint, are these serviceable?

Not serviceable at home.  Drive line replacement is common. Used or new .  

if it is that center bearing (not the standard u-joint), has anyone tried tapping in a grease fitting? 

Is there room within the bearing housing for such a move?

Edited May 20, 20187 yr by brus brother

If it is rythmic squeak like the video it's a U joint.

Quite often they only make noise in reverse.

If it is rythmic squeak like the video it's a U joint.

Quite often they only make noise in reverse.

what video?

i see there is a swf file that neither my windows or linux computer wants to open...

Edited May 21, 20187 yr by brus brother

Huh, link and video is gone, trying again.

 

 

 

well strange can't even link to a youtube video.

 

On youtube search with quotes "silverado bad u-joints"

Edited May 22, 20187 yr by CNY_Dave

Any chance it sounds like this?

 

That sounds like the shaft scraping against something.

yup cny that silverado ujoint sounds about right

anyone every tap in a grease fitting for that center bearing

i have been told by local shops that the drive shaft isn't serviceable...

A good local shop can modify the "non serviceable" U joint mounts.  At least the local one here did with my older Loyale "non serviceable" driveshaft.  The U joints on my 09 Forester look pretty much the same as the ones on the Loyale shaft, although I have not measured them.

It does appear you can replace the U joint.  I only hear that sound in reverse as well

 

Yeah, you have to dremel out the “staking” to get the old ones out. I haven’t done it yet but that’s what I understand others have done.

 

I’m going to try to use a hole saw without a pilot but, if I can find one just the right size.

 

Mine are stiff after 500k. Tried drilling to get some grease in there, but the metal is just too hard.

The bearings are pretty destroyed by now, grease won't put the metal back. The needles get out of round, grooves get formed on the race surfaces.

Sure, there's that.

 

But c'mon, I bet I could get another 15-20k out of it 

Yeah, you might. ..

simple?

Edited May 25, 20187 yr by brus brother