use of SYE flange in the front?

Hey can you change out the front yoke and use the RE1801 flange in the front?
Basically making it so you can have identical driveshafts front and rear.

So, this has been ddone and found bad? or is there a spline mismatch?
I was under the battlewagon and was thnking what a time saver, and part saver, it would be.

Don't quite understand why you want to do this, but I believe the rear output shaft is 27 and the front is 26. If you get a yoke that accpets a double cardan for the rear and you have an auto, you can have identical shafts.