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  #21  
Old 06-22-2022, 10:34 PM
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Thank you all again for all the help folks appreciate it.
I'm going to try and drive it again tomorrow and see what it does with the shifter in neutral on and off the pedal. I'm thinking something with the driveshaft or pinion angle or both. I will report what I find.
Dennis yes it is a cool color glad to have it put back that way. I think there were a lot made that way new but color changed over the years. I have not seen another one like it since this one hit the road.

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  #22  
Old 06-22-2022, 11:22 PM
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See if a friend can get in back seat and have him move around even if he has to take a ride in the trunk. Hopefully he can pinpoint the side or if center to determine if you bent an axle or wheel or maybe the drive shaft. Also look closely at your driveshaft to see if it knocked off any of the balancing weights including balancing weights off your wheels. usually thereís a fingerprint where there used to be welded on. if itís missing I would weld a washer to the driveshaft in that spot and see if it starts to help if it does add more washers till itís gone then take the driveshaft out and have somebody correct it properly. You mentioned that you had all the wheels checked too. Does that mean the wheels were off the car and brought to a tire shop for balancing? Also running it up on a Lift will sometimes help find vibrations or create a sounds and noises that are normally OK but during unrestricted torque loads you will get weird sounds that are normal that wouldnít happen with the wheels on the ground as you drive normally. Hope it helps. Iím always trying to find vibration issues at work.

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  #23  
Old 06-23-2022, 12:02 AM
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I would bet it's the driveshaft, but for grins, look in the center of the harmonic balancer to see if it some soil got packed into it.

Many years ago I had a 65 4 speed GTO, that had the same symptoms, and the vibration was in it when I bought it. I finally swapped the driveshaft out of another 65 Tempest, smooth as silk. I looked that old driveshaft over plenty of times, ran it with the rear wheels off the ground, and never could find anything wrong with it, but swapping it, changed like night, and day.

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  #24  
Old 06-23-2022, 12:50 AM
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Glad your ok and your car too hope your able to fix it soon so you and pops can go cruising.

  #25  
Old 06-23-2022, 06:48 AM
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Yes, glad you are ok. Car looks beautiful from picture. Sorry for the accident. Myself I pray everytime I go out,people txtg, not paying attention. Then old people like me, gulp, having a senior moment. I found my bent axle by going g up long hill by my home,removing driveshaft and coasting down hill. Probably other ways but I thought suspension would be loaded.

  #26  
Old 06-23-2022, 07:25 AM
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Yikes! Glad that beautiful car wasn't smashed

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  #27  
Old 06-23-2022, 07:53 AM
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Might well check the 4-Speed Case Tabs to the BellHousing.

  #28  
Old 06-23-2022, 09:07 AM
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Quote:
Originally Posted by Sirrotica View Post
I would bet it's the driveshaft, but for grins, look in the center of the harmonic balancer to see if it some soil got packed into it.

Many years ago I had a 65 4 speed GTO, that had the same symptoms, and the vibration was in it when I bought it. I finally swapped the driveshaft out of another 65 Tempest, smooth as silk. I looked that old driveshaft over plenty of times, ran it with the rear wheels off the ground, and never could find anything wrong with it, but swapping it, changed like night, and day.
I agree, it doesn't take much, visual take on it may not be enough. Some experts also have better eyes....

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  #29  
Old 06-23-2022, 04:06 PM
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Update
The car does it only with the clutch out and the transmission in gear. Clutch on floor stops the vibration in the shifter and the pedal itself regardless of shifter position.

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  #30  
Old 06-23-2022, 04:12 PM
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Quote:
Originally Posted by JacintasHot View Post
Update
The car does it only with the clutch out and the transmission in gear. Clutch on floor stops the vibration in the shifter and the pedal itself regardless of shifter position.
Would that mean it's something between the flywheel and the drive shaft? I suppose load could effect that, so maybe still the driveshaft? Does the effect get worse under load, acceleration or deceleration vs steady state?

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  #31  
Old 06-23-2022, 04:25 PM
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Yuk something between the flywheel and driveshaft.
The vibration intensifies as engine speed goes up.
I guess it only does it when the trans is under load.
As the car is underway if you depress the clutch just past the point of resting your foot on it, it's there you can feel it.

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  #32  
Old 06-24-2022, 12:39 AM
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Quote:
Originally Posted by jhein View Post
Maybe some vegetation (looks like corn)
Has anybody confirmed if the vegetation was, in fact, corn?

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  #33  
Old 06-24-2022, 07:58 AM
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Wonder if the transmission isn't cocked a little bit misaligning the pilot shaft and the clutch. Check the rear transmission mount crossmember

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  #34  
Old 06-24-2022, 10:28 AM
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Quote:
Originally Posted by Brentco View Post
Has anybody confirmed if the vegetation was, in fact, corn?
I'm thinking white corn. I don't know why...

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  #35  
Old 06-24-2022, 02:49 PM
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Quote:
Originally Posted by Brentco View Post
Has anybody confirmed if the vegetation was, in fact, corn?
Based on the photo I'd have to say yes.

Definitely not beans, or cotton, or even soft/hard wheat.

K

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  #36  
Old Yesterday, 12:06 PM
djseth djseth is offline
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This is one of my biggest worries. Worse now than ever as everyone is texting and driving and no one even understands what we drive, the monetary value and the value TO US. Glad you are ok and so is your beautiful car. Clutch depressed means the engine is disconnected from the wheels. So it is not drivetrain. Could be the harmonic balancer or a bent bully on one of the drive belts.

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