help me ID this drive shaft...... 68 R/T 4 speed?

[eldubb440]

I have a few drive shafts in my shed, and they all look alike after a while........ pretty sure this one came out of a Coronet R/T 4 speed car, but I need confirmation....

55 inches center to center...... looks like the back end was replaced;

 

[R413]

Too long for a Dana Coronet. More like a 904 in a 66-70 b body.