It seems to drive fine as long as you stay out of the boost and high rpm's.
Would the viscous be slipping at highway speeds with no boost or load?

I need to grt it to my friends shop 200 miles away and a tow would cost a fortune.

 

Well... Yes and no. You broke your front diff that is in the Transfer case.. But it is contained. You could limp it and I've seen people do it. This is different then a dsm.