i know it is not everyday that we go over 100mph, but a few times i do go up to like 110. well while doing so each time i do this my car starts to hummm and shake more, and more after i pass 95mph! could this be d.s.? (not noticable till after say, 90 mph) do any of you know what this could possibly be?if it is the d.s., would it be ok to go with a carbon fiber d.s.? or would that screw somthing else up?

 

MOst of the time the drive shaft vibration can be felt around 60-75 MPH... I would check the trans mount first......

 

Try rotating it 180 deg. It may help. Aluminum LS1/1LE/LPE is always a good idea

 

I'd get an alum...

Fixed my wobble wobble at those speeds...


Now if I can just keep those back tires in balance... hehe