T5 vibrations at 50mph and up

Reply Subscribe

Thread Tools

Search this Thread

Mar 23, 2007 | 09:32 AM

jump150

Thread Starter

Racer

Joined: Jun 2001

Posts: 334

Likes: 6

From: Newark De

T5 vibrations at 50mph and up

Hi All,
I did a T5 swap from a Camaro into my 64. The ujoints are new, driveshaft shortened and rebalanced and wheels all rebalanced. I used a new clutch disk and billet flywheel. I checked the pinion and tranny angles which are fine but I am getting a nasty vibration/shaking starting at 50 mph that gets worse as speed increases. Its not rpm related as it happens in 4th or 5th gear or with the clutch pushed in. Could it be an isse of pilot bearing, tailshaft bushing or something along those lines. Any ideas of the cause would be appreciated.
The whole reason to put in the T5 was to be able to cruise at 55mph and above.

Thanks in advance
Don

Mar 23, 2007 | 09:39 AM

Durango_Boy

Team Owner

Joined: Aug 2006

Posts: 24,125

Likes: 15

From: Columbia Missouri

Did you use an alignment tool when installing the clutch? I know you can get some nasty vibrations if everything's off by even a little bit.

Mar 23, 2007 | 09:56 AM

jump150

Thread Starter

Racer

Joined: Jun 2001

Posts: 334

Likes: 6

From: Newark De

DurangoBoy,
No, I didnt use the cluch disk alignment tool. but once I pushed in on the clutch pedal I am sure it aligned itself.

Don

Mar 23, 2007 | 10:22 AM

Durango_Boy

Team Owner

Joined: Aug 2006

Posts: 24,125

Likes: 15

From: Columbia Missouri

Quote:

Originally Posted by jump150

DurangoBoy,
No, I didnt use the cluch disk alignment tool. but once I pushed in on the clutch pedal I am sure it aligned itself.

Don

Maybe...just something to consider.

Mar 23, 2007 | 10:26 AM

Artsvette73

Drifting

Joined: Jan 2004

Posts: 1,991

Likes: 3

From: Piscataway NJ

The easiest to check is the tailshaft bushing right now. But it could be the pilot bushing also.

Mar 23, 2007 | 11:29 AM

norvalwilhelm

Race Director

Joined: Nov 2000

Posts: 11,872

Likes: 12

From: Waterloo ontario Canada

Quote:

Originally Posted by jump150

DurangoBoy,
No, I didnt use the cluch disk alignment tool. but once I pushed in on the clutch pedal I am sure it aligned itself.

Don

Yes they do self align. Once the clutch is pushed for the first time the disc is free floating and aligns itself. You only need the tool the first time so you can install the transmission.

I ran into this in a big way in the past and found it IN MY CASE TO BE A DRIVE TRAIN ALIGNMENT ISSUE.
I don't want the hassels of going into this but I aligned my drivetrain and it went away

Mar 23, 2007 | 01:36 PM

OregonVette80

Burning Brakes

Joined: Jul 2006

Posts: 830

Likes: 1

Hmmmm...I dunno, I'd take the tires to a different shop and make certain that they are using a modern "harmonic balancer."

At 50mph and getting vibrations still sounds like a tire balance issue.

Mar 23, 2007 | 02:07 PM

jump150

Thread Starter

Racer

Joined: Jun 2001

Posts: 334

Likes: 6

From: Newark De

Norval,
I measured the the distance between the output yokes when horizontal and it seemed dead on. I will have to do it all again this weekend and have an extra set of eyes to confirm.

And yeah I will have to find an extra set rims to borrow to rule out the wheels.

Thanks for the ideas,
Don