Mine's still attached to my 14,000 lb army truck. They're designed so that either the truck moves or whatever's attached to the other end does. I winched my dead 16,000 crawler up my 14% slope driveway, had to chain the back of the truck to a succession of trees to keep it from being dragged downhill. Lock up all 10 wheels, and the winch will drag them.
No need for a brake, they're also 2 speed. I've pulled 60' logs up 50% slopes, by nosing the truck into a tree to keep it stationary. Just keep a spare shear pin on hand if you've got the power these winches were designed to handle.
A snatch block, sized to the winch, is a critical need if you can't get the winch positioned for a straight pull.