So, this may be hard to explain without a sound byte or video, but I've tried several times to capture it to no avail. While driving I'm hearing a rattling/squeaking sound from underneath the truck. It ONLY happens when I'm actually pressing the gas, if im coasting it isn't present. It seems like it's a circular noise, if that makes sense.

For context, it's a 96 XJ, 5 speed (ax-15). I installed a clutch kit about a month ago and a new master/slave. The only thing I didn't do was the flywheel. Changed fluids (oil, trans, transfer case, and complete coolant flush) It doesn't seem to be affecting anything else, drives fine, accelerates fine, shifts fine.

 

Have you checked all the bolts you touched while doing the clutch?