drivline vibration

hi ive got a bad vibration starting at about 70 mph gets worse with speed lets up around 100 or so in my lt1 6 speed i changed my gears to 4:10s and clutchmasters clutch i noticed it slightly before that tho.. first though my tires got new corvette rims and tires still there next thought driveshaft just baught a cromoly spohn driveshaft still making noise has poly trans mount umi adjustable torque arm set to around -3 and an adjustable panhard par which im not exactly sure were to measure from to get it perfect other than the wheel overhang i also noticed the driveshaft angles slightly towards drivers side looking from the back dont kno if it supose to be like that or what? im basically out of things to buy to get rid of this damn vibration any leads, clues or comments greatly appreciated

Poly trans mount. Swap in a stock rubber and I bet the vibration is gone.

holy shit man howd u even know that have u had the same problem ive never really heard any feedback about the poly trans mount negative or positive.. theres still a slight vibration but its way less noticeable thanks alot for your help i did put that mount in when i did my clutch but have u ever heard of gears making a vibrationim olmost leaning towards that cuz they make noise or maybe slight bent axle or output shaft.. all bearing in rear end where new at the time i changed gears.. i was gonna try changing the pinion angle also.. any input welcome but thanks alot for your help

Never done it myself. Just seen enough results to make that my first estimate as to your problem.

well it deffinetly made the vibration less apparent but im worried watever vibration is still happening n tweakin on my tailshaft or rear end gears my driveshaft was pretty bad the new driveshaft took away most of the vibrattion.. any other input im all ears

Quote:

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Originally Posted by Fastbird

Poly trans mount. Swap in a stock rubber and I bet the vibration is gone.

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:hail::hail::hail::hail::hail::hail::hail::hail::h ail::hail: :claps:

Quote:

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Originally Posted by Fastbird

Poly trans mount. Swap in a stock rubber and I bet the vibration is gone.

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x3, i had that happen with mine, 10 bucks for a stock rubber one.

ya i put in the rubber one and it made the vibration way less noticable im still at a loss wats causing the vibration though

do you have poly motor mounts too?? Those are GOING to transmit some vibrations, much more than rubber mounts.

i found a good write up
http://www.camaroz28.com/forums/showthread.php?t=536982