Whats up guy's? Got a question hopefully someone has an idea. 93 Z28, A4. Everytime I floor it from a dead stop and when it shifts from first to second at WOT, I get this serious driveline vibration, trans mount is good, and it has a new torque converter. Any ideas on what it could be, or how I can go about figuring out what this may be. Really dont want to pay $85 dollars for an inspection.

 

do you hear any noises when this vibration occurs ?

 

It's almost like a grinding kind of noise. but you cant hear it outside the car,only when your inside.

 

Thinking it could be the servo's or rearend. Anybody?

 

Anybody got any ideas about this?

 

Since it happens on a shift, I would want to check the transmission out, may need an overhaul.