Does anyone know what the ID is for the lower radiator hose on my 2006 LBZ? The OD measures about 2.25" so I am guessing that the ID is around 2.0", possibly a little smaller.

I am going to cut the lower hose and splice in a piece of pipe with a drain so it isn't such a PIA to drain the coolant system. There is no factory drain on the 2006 LBZ trucks.
If I can find out the size of the lower hose I can make up the drain in advance and avoid down time.

Thanks in advance
John