Diagnose rattle under shift knob?

[truckeejeeper]

So - I just had my shop (been using them for 20 yrs.) put in a new clutch (LUK) on my 1991 4.0 4x4 5 speed about a month ago. Everything new under there, master, slave, flywheel, bearing etc. Recently thought, I've started to hear a squeaking/rattling that sound like its right under the shift knob/shifter unit. The sound comes when I push in the clutch pedal/disengage clutch (like at a stoplight.) If I shift it into neutral and let up the pedal, sound goes away. Push in pedal and shift into gear, sound comes back. I can't tell if the sound is there while driving (no carpet kit, its pretty loud) but I assume it is. Sound is like a chirping/squeaking, little bit a rattle. Like something isn't lubed or tight or both. What is this noise? It's new for sure. Was there before new clutch, or right after clutch install. May be getting louder.

Thanks for any ideas

- TJ