Chirping

knucklehead_vol

Well-known member
Aug 5, 2015
101
0
Memphis
Disco is chirping from what sounds like underneath. I greased the ujoints front and rear as well as both driveshaft. The front is a Tom Woods. This did not fix the chirping. Anyone got thoughts on this? I am beginning to wonder if it is the brakes. This only happens when I am driving. Parking or neutral it does nothing.
 

rovercanus

Well-known member
Apr 24, 2004
9,651
246
On the Tom Woods yes. You have to drop the shaft and use a needle adapter on your grease gun.
 

knucklehead_vol

Well-known member
Aug 5, 2015
101
0
Memphis
I got everything greased. The chirp was gone. I then drove this morning and nothing. My driver side window was down and all was quiet. I rolled the passenger side down and heard the chirping again. When I had the driveshaft off I did not see anything or hear anything odd. Does this still sound like a driveshaft? Unless I have something on my right side it is hard to hear it. I have no vibrations that would indicate the driveshaft.
 

fishEH

Well-known member
Jan 26, 2009
6,929
203
Lake Villa, IL
I got everything greased. The chirp was gone. I then drove this morning and nothing. My driver side window was down and all was quiet. I rolled the passenger side down and heard the chirping again. When I had the driveshaft off I did not see anything or hear anything odd. Does this still sound like a driveshaft? Unless I have something on my right side it is hard to hear it. I have no vibrations that would indicate the driveshaft.

Drop the driveshaft, lock the CDL, and drive it. If its shaft related the chirp should be gone.
 

mearstrae

Well-known member
Mar 15, 2017
143
18
Pennsylvania
Worst case scenario, my wife failed to mention a persistent 'Chirp' on her D2, then coming down an off ramp she thought she hit the rumble strips. This was followed by a big bang and a cloud of smoke. The front shaft had gone through her transmission. Quite an expensive repair. Best case scenario, it might just be a wheel bearing.
 

WaltNYC

Well-known member
Mar 3, 2010
710
138
NYC
Given your description that the chirp is on one side, I'm thinking wheel bearing or brake rub/drag.