727 motorhome tranny question

You need a long tail shaft. I don't remember the length but cars and light trucks use the longest tail shafts. The motorhome might have a car/light truck trans. or it might have a short shaft with a bolt on yoke. Look at it and if it has a yoke bolted onto the back of it instead of a slip yoke the only way to make it work is to completely disassemble the trans. and replace the output shaft (goes in from the front) and tail shaft housing.