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Username Post: vibration        (Topic#351543)
Posts: 6

Reg: 08-07-17
06-12-18 07:43 PM - Post#2736776    

Recently installed Tremec tko500 in my 63 409. Have now developed a bad vibration starting at 1800 RPMs. Will do it whether on the road or sitting still with clutch released or depressed. Feel it worse in the seat of your pants. Have had tranny out 3 times, can't see anything, no interference with the floor pan. Had driveline shortened, balanced, and installed urethane carrier bearing. Any ideas

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Posts: 27687
Loc: San Francisco, CA
Reg: 11-26-02
06-14-18 09:52 AM - Post#2736953    
    In response to frstcar

Don't worry about the driveshaft or related parts. If the vibration occurs when the car is standing still, the problem has to be in parts which turn with the engine. When you installed the TKO, did you do anything to the existing clutch or flywheel?


Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.

Valued Contributor
Posts: 3512

Loc: Braintree, Ma. USA
Reg: 06-14-08
06-14-18 03:03 PM - Post#2736973    
    In response to frstcar

Why the new topic posting?

'64 Impala SS
'77 Pontiac Ventura SJ
'85 Lincoln Town Car
Ain't to proud to think out loud.

Edited by Chevrobert on 06-14-18 03:12 PM. Reason for edit: duplicate posting

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