I suppose so. Only way to know for sure is to start eliminating options by testing em all. What kind of shudder is it? I mean...if you've ever driven stick, is it like...sometimes when you let out teh clutch, and the disc is worn down, it'll chatter in and out, causing the front end to shudder. Does it feel like that when your car shifts? Or, again like a stick-shift, is it a shudder like you let the clutch out too fast, and the car kind of bounces back and forth as the engine gets control of the motion? Or is it a different kind of shudder, more like something that's out of balance and maybe causing a vibration? Just some ideas, hope I didnt confuse ya