Why does transmission still leak after shaft seals were replaced?

Transmission Fluid may continue to leak after shaft seals are replaced due to several reasons. Possible causes include improper installation of the new seals, damage to the shaft or surrounding components that prevent a proper seal, or other unrelated leaks in the transmission system, such as from a gasket or fluid lines. Additionally, overfilling the transmission or using the wrong type of fluid can also lead to leaks. It is essential to thoroughly inspect the entire system to identify the source of the leak.