Driveshaft measurements

Anybody happen to have the ordering measurements for a driveshaft for 69 dart with 8.75 rear and 727?
Also the measurements for same car with a 904

What i am trying to do is this. Get the measurements from somebody that has ordered a driveshaft for a 69 dart or equalivent with a 727/8.75 rear
I then want to compare those to my car to verify they are the same.
Then get the same measurements for ordering a 904 shaft...... what i am hoping to do is this swap all in one day. I cant unless i already have the driveshaft waiting for the swap to the 904