I noticed today when i was driving to class, when i let off the gas at 65 the car had a nasty vibration to it. I tried taking it out of gear and it still did it, let out the clutch and it still did it. It definately felt drivetrain and it shook the whole shifter. I took a video, you can kinda of hear what i'm talking about. I just uploaded it so it may take a while to finish.

http://www.youtube.com/watch?v=jYUC2p7yeE0

 

just came back from my night class and it's getting worse, it does it from about 60 and higher, think the tranny could be the culprit? I'm going to check the weights on the driveshaft, and i guess the teeth on the moser, but i dont know what else it would be besides the tranny.

 

Since it vibrates at 60 mph when it's not in gear, most likely the driveshaft back. What happens if the car is standing still and you rev the motor in neutral?

 

Doesnt seem to be motor or clutch related, i ran it up to 6k in first without a vibration problem, i havent tried to sit in neutral and rev it, but ill give it a shot tomorrow.

 

If you had it up to 6K rpm in first gear without the vibration, you have proved that it's not the engine/flywheel. Check your driveshaft/U-joints.

 

Are yu running an aluminum DS? If so, stop driving that thing and check it. You may be on the verge of twisting it off. That would be a very bad thing if it cut loose at road speed.

 

No, it's a 3" steel driveshaft made by broward powertrain, the guy said they have these shafts going 9's. But I got under the car last night and pulled the shaft, one of the round things at the u-joint was stuck, so i took one off another shaft i have, but it didnt fix it, still vibrating. I actually think that the shaft got crushed when i launched the car. I dont think they shortened it enough to give me enough room when i really launched hard and got the suspension underneath the car.