4x4 Transfer case Questions

[newbuick]

The transfer case on a Blazer 4x4.

1. When the transfer case is in 2 wheel drive, is it a 1to 1 ratio??

2. Is the VSS (vehicle speed sensor) mounted on the transfer case or transmission???

Any clue to the above will be greatly appreciated

Thanks

[troy1]

2Hi and 4Hi are staight through what comes out of the tranny is what you get 4 low is a geared down in the T-case and the speed sensor is on the T-case on the back next to the rear drive shaft