What are symptoms of a worn flex disc?
 

Lately my car has started to show a slight symptom of what i think may be a wron flex disc. It isnt very bad at all, but id like to troubleshoot before it gets bad.

When accelerating, at higher speeds, I can feel a shudder through the accelerator, and body of the car. It gets stronger when accelerating, and then dissipates, and returns in a weaker form when decellerating slightly at highway speeds.

What could it be?

The car has a new front end, new rear shocks, and all wheels have been balanced and rotated.. no steering wheel vibration, and car doesnt drift an inch. Rides as smooth as possible otherwise.

The best way to diagnose flex discs is to crawl under there and look at them.

I believe Larry Bible said to Push, Pry, and Pull on them. Anything obvious should be disasembled and the discs inspected carefully. This is not a part you would want to fail while driving.

For sure inspect the flex disks but, this sounds to me like a bad center support (the rubber part) or, a worn universal joint. Do a search in here on these terms: "universal joint" and or "center support."

Plenty of experience in here on this.

Thanks for the help/reccomendation guys!