Vibration in the ?? - 1973 Cutlass S

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Old July 7th, 2014, 06:41 PM
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Vibration in the ?? - 1973 Cutlass S

Had a recent new mufflers and brackets + tranny installed (new tranny) to my Cutlass (engine is a 403 / tranny is a 350TH), auto, console shifter.


Getting a vibration upon slow acceleration (from a stop), on bumpy roads (not going fast).....ONLY when there is a driver and a passenger in the passenger seat. Vibration felt behind center console and on floor pan (rear area and sometimes passenger front). Im so confused.


Took it to mechanic, they said U-Joints are good, tranny is good and so are tranny mounts. They could not replicate the problem



I am sick of mechanic visits, and not a fan of simply blindly replacing things. At the same time, I don’t want to hide my head under a rock, drive the car and drop a drive shaft or something
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Old July 7th, 2014, 07:18 PM
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Sounds to me the driveshaft is hitting either the tunnel or the new exhaust........or both! Take the car back to whoever did it and have them fix whatever they messed up
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