The mondeo is 4x4 atm, so ive got the tunnel for drivetrain.
Think i have to change the rear diff, for a stronger one, and if you are talking about the driveshaft itself, getting the correct length should not be what kills this project.
The 2.5 engine is kinda short, so it should fit. Trouble is finding what gearbox i can use, and getting that to fit, since mondeo has a transverse engine... there isnt much room "back in the car" for a gearbox. but that should not be to big a issue..
Think steering might be the biggest trouble atm... but first i gotta sort out gearbox,and see what room ive got...
I also have a good supply of sierra, scorpio parts from a scrappy