clutch pedal bearing replacement

If you mean the clutch throw out bearing, it is a hydraulic unit, bearing and cylinder together. Changing it involves, jacking the truck up, locking it in place with jack stands. Remove the drive shaft, transmission to engine bolts, clutch cylinder line, shift lever or linkage. Then the transmission cross member and the transmission. The bearing unit bolts to the front of the transmission. Reverse the process to reinstall and bleed the clutch.

But if you are there anyway and have not replaced the clutch, this is the time to replace it. Get the flywheel resurfaced, check the engine's rear main seal and put in the new clutch parts. Time wise it adds maybe an extra half hour to the total. If you do just the bearing and the clutch starts slipping in a few thousand miles you get to do or pay to have all the work done again.