Noise coming from transmission/gear shift area on 2003 Ford Mustang GT

I need some help. I had my clutch changed about 3-4 months ago and now have a vibration type sound or noise coming from the bottom front and also a rattling type noise coming from my gear shift area. The vibration noise is there most of the time, especially after I shift gears and accelerate, it's very noticable for about 3-5 seconds. Any idea what this can be?

Also any recommended mustang shops that is trustworthy, does good work, and reasonable in the san antonio, tx area?

1 answer 2 comments
It is so hard to guess without being able to drive the car first hand and hear the noise. I wonder if you have a cracked exhaust heat shield, or a failing exhaust muffler or even catalytic converter starting to fail internally. It could also be something as simple as an exhaust bracket that is loose.
I don't have any CATs, running straight X pipe with flow masters, had my muffler guy check the exhaust brackets. He said they were good. Should there be a certain amount of noise with an aftermarket Clutch installed. When the engine warms up, usually that's when I hear the noise.
Sorry so late in getting back to you. Did you figure out the noise or vibration. The clutch shouldn't make a noise or cause a vibration if it is a stock type clutch. If it is a high performance clutch that has no "take up" springs in the disc it may shutter when starting from stop. People sometimes make the mistake of putting a racing clutch in a street car, they are not meant for driving in traffic.