As anyone installed one of these to help prevent a vehicle from rolling while using a winch?
Work around your truck with confidence that it won't move.
■For use on trucks with a dual brake line system, the Dual Lock locks fluid in your two brake lines simultaneously and prevents your truck from rolling.
■If a drop in brake pressure is detected, two built-in pressure warning switches sound the horn alerting you to check your brakes and/or re-engage the Dual Lock.
■Includes a basic assortment of brake fittings and instructions.

Work around your truck with confidence that it won't move.
■For use on trucks with a dual brake line system, the Dual Lock locks fluid in your two brake lines simultaneously and prevents your truck from rolling.
■If a drop in brake pressure is detected, two built-in pressure warning switches sound the horn alerting you to check your brakes and/or re-engage the Dual Lock.
■Includes a basic assortment of brake fittings and instructions.