GM Trucks instrument clusters from the late 90s and 2000s are notorious for developing annoying issues as they age.

In this video I cover the diagnosis and repair of the "top three" problems that plague these clusters:
-Erratic or stuck gauges (@20:15 solder in new stepper motor)
-Burned out backlight bulbs (@ 20:15 solder in new bulbs)
-Dim or missing PRNDL display (@31:00 solder resistors)

There are many forum posts and other videos on YouTube that deal with the issues above, as well as less common problems that may arise.

My source for replacement stepper motors and backlight bulbs:
http://www.ebay.com/itm/6PCs-GM-GMC-S...

Enjoy!
Ivan