There are two versions of the motor home 727, Class A chassis that have the emergency brake on the tail shafts and the class B and c that don't have it there. It sounds like you have one out of a one ton class B or C van chassis
To answer your question on both versions they are for motor home applications only
I am going to use one of those cores to take parts out them to convert the front of a pre 1967 car tranny to the later front pump and input shafts so I can use the 1967 and later torque converters, the front half share parts with the rest of the 727 of the same years Not so on the back half