Who makes the most reliable gearbox?

I'm curious to know, when it comes to the automotive industry, which manufacturer consistently produces the most reliable gearboxes? Is it a specific brand known for its precision engineering, or perhaps a company that focuses heavily on rigorous testing and quality control? I'm particularly interested in hearing about the durability and longevity of these gearboxes, as well as any real-world experiences or testimonials from satisfied customers. Ultimately, I'm seeking guidance on which manufacturer I can trust to deliver a gearbox that will perform reliably for years to come.