'96 Blazer vacuum routing

Hello, i have a '96 Blazer I was wondering if any one could tell me where the large vacuum hose that comes out of the switch on the transfer case goes? I unpluged it and can't remember where it goes. (stupid) thanks you for your help!! :banghead:

There are 4 lines to the transfer case: Manifold vacuum, front differential actuator, actuator vent line and transfer case vent to atmosphere.

Thank you I will try to trace it back tomarrow. Thanks again!!!