drive shaft for 1974 scamp

RaniDart70 said
a duster /demon/ dart sport will be shorter because its a shorter wheel base than the swinger/scamp

I knew that the Demon, Dart Sport is at 108" WB but I wasn't sure about the Scamp/Swinger models. They must be at 111" WB. The DS that I have measures approximately 44 3/16 which would be about 3" shorter than the Scamp/Swinger.