Porsche Gearbox Building Program Turn3 Autosport Porsche Gearbox Rebuild Program. We have an extensive Porsche Gearbox Rebuild Program and rebuild every gearbox model throughout the range of production. Rebuild slots… Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Like this:Like Loading... November 4, 2021 Read article