96dreamer

When ever i run my car up to about 120 it getsa real bad vibration on decel between about 115 and 80. There are no weird vibrations on acceleration just when i left off and start to coast, and taking it out of gear does nothing the vebration is still there. I was thinking maybe driveshaft? and please no **** obut speeding or anything like that, this isnt a everyday event but the fact that it does it bothers me

redbullitt

lol dont speed

seriously though, it could be an imbalance in your driveshaft, flywheel, or even wheels.

all worth looking into, at least it only does it at higher speeds. any mods to any of these parts?

so1o2k3

I just had a similar problem. My car would shake violently at higher speeds. I took it up to 120mph to see how bad itwas and I made it worse lol. Turns out I had a bad front U-joint on the driveshaft.

96dreamer

stock driveshaft, 95 cobra r rims with nitto 555 tires balanced within .10(balanced them myself), and it has a 99-04 cobra flywheel with 99 cobra flywheel and pressusre plate with new oem tob. maybe ill tray turning the driveshaft 180deg and see if it helps at all. it also has 4.10s

BleedinBlue

I'm guessing driveshaft. With the 4.10's and the high speed, it doesn't have to be out of balance by much to be noticeable.