i would leave it alone.
A picture of the clutch assembly removal process for a 250 Polaris Trailblazer can be found in the repair manual. It details how to access, disassemble, and remove the assembly.
the clutch on a 2000 ford f250 is a hydraulic clutch there is no adjustment however check the bushing on the rod and pin on the clutch pedal this bushing wears out and you loose pedal if the pin is wrn ,you will have to replace the clutch pedal
replace the bushing where the clutch pedal attaches to the master cylinder arm.
if you do not have no experience in fixing car, do not do it
replace your fan clutch.
The ac clutch is held on with a single nut, and can be removed with a remover tool. It the tool will not fit in the space available, then the entire compressor will have to be removed to replace the clutch.
Its has a bushing and should be replaced everything the clutch is being replaced, as a set!
You can absolutely replace the fan clutch on your 2003 Trailblazer yourself. The clutch does not have to be reprogrammed but you do have to wait until the vehicle is completely cool before you begin work. Just remember to re-torque the fan bolts as specified in your manual.
you can easily replace the cover on your sled and they are fairly cheap $20 315-964-2577
A few weekends ago I had to replace the fan clutch on my '06 Trailblazer EXT LS. In addition to getting the P0495 code from the check engine light, when I rev'd it up it sounded like a jet engine. Instructions: http://www.diystew.com/2006-trailblazer/
First you've got to pull the transmission. After that you've got to take the plate with tines on it off and take the clutch off and take the flexplate or the flywheel off. You have to use a rod to place in the Flywheel to center the new clutch. Also, at this time you should replace the bushing in the flywheel.
The pilot bushing is installed into the rear of the crankshaft. The pilot bushing supports the input shaft of the transmission.