these are not "easily" replaceable, they are attached to the circuit board. but if you can solder around a circuit board then you're in good shape
If you aren't confident i'd just leave the alone or buy a new gauge set.
There is a thread here about this somewhere where the guy upgraded everything to red LEDs
EDIT:
Found it
GMT-900 NNBS Cluster Red Backlighting Conversion Project
If you aren't confident i'd just leave the alone or buy a new gauge set.
There is a thread here about this somewhere where the guy upgraded everything to red LEDs
EDIT:
Found it
GMT-900 NNBS Cluster Red Backlighting Conversion Project