The original quarter vent rubber drain tube is often deteriorated and cracked allowing water to enter the car's interior through the Fastback quarter vent assemblies.
This can lead to a soaked carpet and rusted floor pan.
This specially formed reproduction drain tube is made from high grade rubber and trimmed to the correct length.
The wide end connects to the bottom of the vent assembly and the narrow end is inserted into a drain hole in the outer rock panel.
Typically when restoring a Mustang every rubber component is replaced. This hose serves a crucial function and if the original has not cracked yet it soon will.