Your Dana 70 does not crush sleeve but it does have fairly high torque. If you don't have a torque wrench that goes that high (or if you have a Dana 80), mark the relationship between the nut and the shaft before you remove the nut. On reassembly, tighten the nut until the lines are slighty past where they were when you marked them.
The Dana 80 torque is 450 (475?) ft-lbs, my torque wrench doesn't go that high.