My 92 22RE is losing antifreeze at a rapid rate.
No leaks under hood (that I see)
No antifreeze on the ground
No antifreeze in the oil
No antifreeze coming out exhaust.
Experts, where should I look?

 

Check your resivor and where the "overflow" hose from it would dump. On my '81 it dribbled down on the drivers side fender and spring. Bad head gasget pushing air into the cooling system.
Other thought would be heater core. Does your cab have a gross pancake syrup smell when you turn on the heater?