Because I was reusing the the old bearings I had to put plenty of effort in to crush down the new tube being careful not to go too far by doing 1/8th of an inch turns and then checking the drag torque.
10 inch lbs was enough for me on used bearings, the guy in this thread did 12 in/lbs on new bearings but 10-15 in/lbs is within a general range apparently.
http://forum.miata.net/vb/archive/in.../t-171048.html
Job done!
Next the actual LSD install.
