Clutch chatter?
 

I have 51K miles on my Mach (stock clutch), and I am noticing this noise more; when I am slowing driving in first gear (like when i am pulling into my garage, parking spot, stop sign, etc.) and I depress the clutch, the car makes a chattering/banging noise, not loud but noticable. I can feel it through the shifter. It happens when it's cold (cold start up) and goes away somewhat when the car is warmed up.

I know "normal" clutch chatter happens when the clutch is disengaged and on take off; this happens when I press the clutch in at low speeds in 1st and reverse.

I have done many searches and only come up with the "normal" clutch chatter problem.

Thoughts?

The clutch on my mach lasted until about 50K miles. Just had a new one installed this week.