putting a 4.0 p/s pump and steering box on a 2.5..

[JeepcoMJ]

can you put the 4.0 p/s pump and steering box on a 2.5?

 

are they the same? sure look pretty similar...

 

I appreciate the help. gotta get this on my 2.5 motor as the one that's in the cherokee is probably shot.