Dart w/ 727 and Vibes and Yoke Question

The output shaft is still 1 inch out past where the new seal is. The shiney spot on the yoke is where the old seal ended by witness marks. The out put shaft ends about the same place. Ur drive shaft may be alittle short. Push the yoke in till it bottoms out, then pull it out 1 inch. Then measure for the length u need. Kim