Coolant drain plugs

[rhsub]

I am doing a coolant flush on a 02 K2500 Dmax and I am not sure where the block drain plugs are??? Any info would be greatly appreciated
Thanks in advance:)
Ron

[Duramaster]

The block drain plugs are the ones in the block that are kind of shiny and they have a yellow paint mark on them. The one on the right bank is just above/ behind the starter motor (the starter does not need to be removed for the plug removal) and the left one is just forward of the engine mount as I recall.