@ CanadianRockyCruiser: Yes, i saw that posting late last week. I loved it. It inspired me to pull the cluster, begin unscrewing, and detaching ribbon/power cables. Not hard, just time consuming.
I didn't have LEDs ordered yet, so i did the old volt meter dance per bulb, as well as shining the flashlight per light socket hole. Then put it all back together again. I considered it a dry run in prep for getting my LEDs. BTW, in addition to leaving the ribbon cable off, i took the opportunity to slide a small piece of black construction paper, covered with black electrical tape, under/below the gauge cluster mask thereby darn near vanishing the Height Control-Hi Low Off as well as the outline of the truck.
Back in the day, when i yanked the ACH system and put the Slee lift on, i pulled the relay which generated the blinking AHC warning light. However, i just got tried of AHC illumination remnants on the cluster. Now as close to perfect as possible without replacing the cluster or making my cluster look hacked.
If anyone wants before and after pics of the AHC de-illumination (if that is a word), just shout