This authentic 1979 Ford Mustang door and window lock assembly is a critical component for restoring both the security and functionality of your classic pony car. The late 70s Mustang featured a sophisticated locking mechanism that controlled both door access and window operation, and when these systems fail, it compromises not only your vehicle's security but also your daily driving experience. This genuine replacement part ensures smooth, reliable operation whether you're manually locking your doors or rolling down those iconic windows to feel the wind rush through the cabin. The precision-engineered design matches Ford's original specifications exactly, guaranteeing proper fit and long-lasting performance that aftermarket alternatives simply can't match. For Mustang enthusiasts who understand that authentic restoration means using genuine components, this lock assembly represents the difference between a car that merely looks good and one that functions as Ford intended. Don't let a faulty lock system leave you struggling with stuck windows or unreliable door security – restore your 1979 Mustang's original convenience and peace of mind with this essential genuine part that maintains both the integrity and value of your classic American muscle car.