Parking Brake Romoval? Help

[Theoriginalsilverado]

Hey guys,

I'm not sure how many of our trucks have this, but mine has a parking brake pedal that sticks out from under the dash at the bottom right by the drivers side door. And, coming out of a hole in the dash above it near where the steering column is in the dash, is a handle that is the release for this parking brake and it says "Brake Release".

The brake line is protected by the stiff steel casing that protects most brake lines. This casing runs out of the cab and is attached to the chassis on the drivers side.

My question is how does one disassemble this setup so that the cab can be removed from the chassis.

This is the last step for me before removing the cab so that I can begin sandblasting, so your guys knowledge and help would be appreciated.

Thanks,
Nathan