Car Vibrating
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From: Pittsburgh, PA
Car Vibrating got a 94 z with a trans go shift kit and 3400 stall the car runs and drives fine till u get to 70mph then the car vibrates like coming from the center of the car....its not the tires cuz their new....and there balanced correct...checked front end everything is tight any ideas
ujoints not centered? or possible tranny mount or clam shell... how many miles on the build? My sun shell was bad in mine for several thousand miles before it went out a month ago...it vibrated like a ****...
Id check the u-joints and make sure the driveshaft is centered in the diff yoke... The sun shell is a part inside the trans, Its one of the heavier rotating assemblies... I doubt that is your vibration though... Id look to the drive shaft first...
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From: Pollok, Texas
If the trans mount is new and you purchased a new high energy mount, then that is your problem. I purchased one myself and it about drove me nuts. Put the stock mount back in and everything was fine. From everything that I read that is why the stock mount is so soft and tends to break alot.
A friend told me to buy a old turbo 400 mount, drill and tap the hole in the center and install it. I did, there is still a slight vibration but nothing near what the high energy had.
A friend told me to buy a old turbo 400 mount, drill and tap the hole in the center and install it. I did, there is still a slight vibration but nothing near what the high energy had.
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just get a mount for a 93-97 4l60 camaro... thats what I did in my 99... just had the tranny put in a couple of days ago... works perfectly and only costs about 12$ as opposed to 70+ for the factory replacement...
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From: Pittsburgh, PA
i just checked it......
its a one piece drive shaft everything is tight for up and down and left to right..
the tranny mount is black with a black plate if u can tell wht kind it is??
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From: Pittsburgh, PA
Thread Starter
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From: Pittsburgh, PA
is this the problem
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From: Pollok, Texas
No that is not a stock mount. That is a high energy mount. I have also seen them in red also. I bought a complete set for mine (both engine mounts and tranny) and wound up removing the tranny mount and installing the D/S engine mount only because of the vibration it caused.
Try replacing it with the 93-97 mount as Anticop suggested. It is a cheap investment to see if it corrects your problem.
Try replacing it with the 93-97 mount as Anticop suggested. It is a cheap investment to see if it corrects your problem.
I'm assuming you have a stock drive shaft. The drive shaft in the LT1 cars from the factory are notorious for vibrating at 70 and above. Just not balanced properly. A poly mount will exaggerate the vibration problem.
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From: Pittsburgh, PA
but it doesnt have the bearing carrier in the middle
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From: Pittsburgh, PA
No that is not a stock mount. That is a high energy mount. I have also seen them in red also. I bought a complete set for mine (both engine mounts and tranny) and wound up removing the tranny mount and installing the D/S engine mount only because of the vibration it caused.
Try replacing it with the 93-97 mount as Anticop suggested. It is a cheap investment to see if it corrects your problem.
Try replacing it with the 93-97 mount as Anticop suggested. It is a cheap investment to see if it corrects your problem.
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From: Pittsburgh, PA
so if i get it balanced it should solve some of it??
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From: Pollok, Texas
Anticop mentioned the mount for a 93-97 would work! $12 dollars he said! Heck this is cheap enough to check to see if the mount is the problem! Didn't figure someone wanted to spend 80 or 90 dollars on a new stock mount. Unless the one that was taken out is still good. If so change them back out and see if the vibration goes away! Mine did!
Get rid of that junk. 
I just had a level II tranny and 3200 stall put in.. I used the 97 TA mount and it works just fine... you never want a stiffer tranny mount than you have motor mounts.. all the twist and vibration is transferred to the tail of the tranny and is known to break the tail...
The only difference is the center nut is not interchangeable... get a nut with a shoulder on it and use a washer as well....
ls1 mount, stock= about $80
LTx Mount, stock= about $12
The only difference is the center nut is not interchangeable... get a nut with a shoulder on it and use a washer as well....
ls1 mount, stock= about $80
LTx Mount, stock= about $12