Why does the All Wheel drive bind when turning?

What is your question?

The transmission in the 96 legacy shifts fine. It can be driven straight. When turning its the same concept of turning a 4 whell drive on dry pavement. It binds and theirs tension. Why is this? Whats the repair needed? How much does this cost?

What makes this problem better or worse?

According to the seller- driving in a figure 8