You sure you didn't hit the speed limiter? Some cars have them around 115mph.

 

why are you guys arguing!
Its a forum, and I asked a question.
And now you guys are doing nothing but bickering back and fourth.

 

welcome to camaroz28.com, where you dont have to know anything to tell someone there wrong

 

well since we're on the subject of driveshafts, my 94Z would start vibrating pretty bad at about 100, a few thousand miles back i noticed when i put a clutch in it the u joints were real sticky and didnt turn well and had like hard spots in them so i replaced them, then now i have the tranny out again cause im getting it rebuilt along with the motor, cause the vibration didnt go away, so i thought it was in the tranny. could an out of balance driveshaft have caused the vibration and u joint failures?

 

there is a very good chance that was your problem

 

i think i might have to check on that before i put it all back together, its good to know i learn something everyday

 

haha oh so true. The instant I read that guys comment about your idea I knew **** was going to hit the fan. I would suggest buying an LS1 driveshaft they are cheap (100$) and will pick you up a solid 5rwhp.