I had a squeeky bearing that would stop after touching the pedal. I figured at first that it was the TB. I pulled the tranny, replaced the bearing with an OEM Ford bearing and within one day it started squeeking again. THEN, I realized that it could only be one other thing, the retainer was warped. Later I found out that the clutch,tb, etc had been changed 3 months earlier at the Ford dealer. That was 2 TB in 4 months. I ordered a Ford steel bearing retainer, pulled and flushed the tranny, added the STEEL retainer, and new bearing and HD ram clutch kit. Has not squeeked since.
My advice is to buy the steel bearing retainer and new seal either from Ford parts or other places like 50resto.com (latemodel restoration supply) and that will fix a squeeky bearing.
If the squeek is only while depressing the clutch pedal, and does not squeek during idle, it is the clutch cable. I have replaced mine 3 times. They just suck, especially with EQ length headers that get them hot and melt the rubber into the cable shaft. I have since re-routed my cable as to not melt it any more.
CB