Truck Repair: Engine replacement how long, dodge cummins diesel, well thanks

Question
My mother has a dodge cummins diesel 6.7L I beleive it is only a few years old.  The motor recently went out and the dealer has had it a long time.  How long does it take to diagnose and replace.  The motor is seized the main crank is broken and some of the trans may be gone as well.

Thanks

Answer
If the intention is to diagnose and replace, and contingent upon the availability of spares, the standard SWT is about 36 hours.
However, if the intntion is to diagnose and repair, depending on the nature of repair and availability of correct spares, the job should be completed in a space of 2 weeks.

Regards,