I was driving in the snow a week ago (I have snow tires) and I noticed a CRAZY noise coming from either the clutch or transmission. I thought I was going to have to park it and call a tow! It was scary. It stopped whenever I came to a stop and when I revved it didn't make the noise. When I started moving again it slowly started making the noise again. Got it home and parked it for the night and the next day it was gone and has been ever since. Weird.
2002 Mustang GT 5 speed: Mach 1 grille delete, K&N drop-in air filter, 75mm BBK throttle body, ported C&L plenum, UPR upper and lower control arms, KYB shocks/struts, McLeod Super Street Pro clutch kit, AM firewall adjuster, MM clutch quadrant, Steeda Tri-Ax shifter, Bassani catted x pipe, Flowmaster weld-in 40's, SCT 93 octane Bama tune
2013 Mustang GT 6 speed: GT Track Package, 301A Tech Package, JLT Catch Can, GT500 Axleback, Steeda Shifter Bushing