I've got an interesting symptom with my '01 Silverado;
every now and again after 2 days of sitting still, I have a tremendously
difficult time shifting the vehicle through the gears.
I leave the truck in gear while parked. When it comes time to back the
truck down the driveway the shifter is completely seized up, and I must
REALLY FORCE it to shift. after a minute of driving and hammering the stick
shift into gear it becomes driveable and operates normally.
If if shift the manual transfer case to Neutral, the shifter will operate.
When I attempt to shift the Transfer Case back to 2HI there is a grinding of
hyd. clutch fluid level is normal.
My two chevy dealers in town have heard nothing of this type of symptom.
The dealer where I purchased the truck from has only sold 4 manuals since
2001 - me being one of the four.