Torque tube bushings question
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Le Mans Master
Joined: May 2008
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From: Helotes TEXAS
Torque tube bushings question
How can I tell if my torque bushings are going bad ??
I have a recurring rumbling sound when on the highway. And its only at high speeds.
Any thoughts ??
I have a recurring rumbling sound when on the highway. And its only at high speeds.
Any thoughts ??
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From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
Usually the TT couplers cause drivetrain vibrations more than noise. Any vibrations along with the noise?
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Le Mans Master
Joined: May 2008
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From: Helotes TEXAS
Sure wish GM would have put some access panels at both ends of the torque tube for inspection purposes....
Last edited by Sinister-one; Dec 1, 2011 at 09:40 PM.
Supporting Vendor
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From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
Supporting Vendor
Joined: Apr 2011
Posts: 3,332
Likes: 194
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
Tech Contributor
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From: Howell Michigan
St. Jude Donor '09-'10-'11
Tire cupping can cause a noise that will exhibit a beat frequency that varies in amplitude while cruising in 6th gear.
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Burning Brakes
Joined: Jun 2005
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From: Toronto Ontario
The propshaft is actually supported by four bearings. The input shaft nose rides in the pilot bearing pressed into the end of the crankshaft. The other end of the input shaft has a bearing between the torque tube and the shaft. The rear bearing of the propeller shaft assembly is supported by a bearing and housing assembly. The bearing and housing assembly consists of a housing, internally splined hub, pilot bushings, O-rings, snap rings, a wave washer, and two ball type bearings. The bearing housing hub internal splines couple to the manual transmission splined input shaft.
Tire cupping can cause a noise that will exhibit a beat frequency that varies in amplitude while cruising in 6th gear.
Tire cupping can cause a noise that will exhibit a beat frequency that varies in amplitude while cruising in 6th gear.
Tech Contributor
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From: Howell Michigan
St. Jude Donor '09-'10-'11
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Worth checking out.
Btw, if you ever do replace your couplers, I can highly recommend Six-Shooters from Prothane.
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 5,892
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From: Helotes TEXAS
You can't hear any of the noise at low speeds, 30-40mph. It's only at highway speeds when the noise comes into play....
Robert, I was thinking the same thing about the tires. I have michelin's and i fo believe they are runflats. And I am due for a new set of tires. I'll jack up the car this weekend and inspect the tires to see what i find.
All you guys are just a wealth of information !!
As for the couplers, I have an aluminum one for the rear and will be buying a prothane one for the front position.
Robert, I was thinking the same thing about the tires. I have michelin's and i fo believe they are runflats. And I am due for a new set of tires. I'll jack up the car this weekend and inspect the tires to see what i find.
All you guys are just a wealth of information !!
As for the couplers, I have an aluminum one for the rear and will be buying a prothane one for the front position.
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
You can't hear any of the noise at low speeds, 30-40mph. It's only at highway speeds when the noise comes into play....
Robert, I was thinking the same thing about the tires. I have michelin's and i fo believe they are runflats. And I am due for a new set of tires. I'll jack up the car this weekend and inspect the tires to see what i find.
All you guys are just a wealth of information !!
As for the couplers, I have an aluminum one for the rear and will be buying a prothane one for the front position.
Robert, I was thinking the same thing about the tires. I have michelin's and i fo believe they are runflats. And I am due for a new set of tires. I'll jack up the car this weekend and inspect the tires to see what i find.
All you guys are just a wealth of information !!
As for the couplers, I have an aluminum one for the rear and will be buying a prothane one for the front position.
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 5,892
Likes: 46
From: Helotes TEXAS
Having a solid rear propshaft coupler is a bad idea and might be the cause of your issue. There is a very good chance that the front coupler is on its way out. Two stock couplers share the torsional load, removing one put 100% of the load through the remaining one. What speed and what gear is it the worst?
you can start to hear the noise at about 55mph or so.
Team Owner
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
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From: Dyer, IN
Burning Brakes
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From: Toronto Ontario
