Noisy Clutch Pedal

Clutch makes squeaking noise when pressed down and released. I have lubed every possible moving part within the cab. I think noise is coming from part of the clutch assembly within the engine compartment? Any ideas about how to trouble shoot this? Clutch pedal works fine other than being noisy.

Probably need to grease the clutch releaser fork.

Probably need to grease the clutch release fork.

http://i16.photobucket.com/albums/b8/rogersb/ClutchReleaseFork.jpg