As long as both the 727 and the 833OD are the short tail shaft or both are the long tail shaft, they should use the same drive shaft. If one is a short tail shaft, and the other is a long tail shaft, you will need a different drive shaft.
Both the 833 and the 833 OD have short tail shaft and long tail shaft versions, the drive shaft length would depend on which tail shaft the trans has. If both are the same version, the drive shaft is the same, but if one is a short tail shaft and the other is a long tail shaft, you need a different drive shaft.
So:
For a 727, an 833 or an 833OD mix and match:
Short / short = same DS
Long / long = same DS
Short / long = different DS