LT1Air

Alright so for the past few months i have had a slight vibration around 50mph and it got a little harsher around 80mph. but over the past weekend the vibration has gotten so horrible that it feels like the trans and drive shaft are about to fall out of the car! I have just repaced the u joints and it didnt fix the problem... i need help i have no clue what to do next! thanks

V68Sweep

Destroyed motor mount maybe? I had a mount that was like 10 thousandths of a inch too high and it gave me a noticable vibration at certain RPMs. Maybe if yours is trashed it could cause that?

Someone else will definitely know more than me though lol

LT1Air

the motor mounts are fine i have checked them thanks though... im just gonna try replacing the driveshaft for the next step

antirice69

Have you checked the tire balance?

silverbullet02

iTrader: (2)

My first guess would be to check the u-joints.