4L80E/4L85E - '97 AND UP

The ATI 406420 Bushing Kit contain all bushings normally required during a transmission rebuild. Featuring precision-machined bushings, this kit restores proper shaft alignment, minimizes internal wear, and ensures consistent fluid flow under high-load conditions. Engineered to ATI Performance Products’ strict quality standards, the bushings offer durable fitment for both street-driven projects and full race builds. When performing a tear-down or upgrade, this kit delivers essential support for extending the lifespan and improving the performance of your transmission by eliminating excess play and reducing friction where it counts.