Torsion Bars

I'm ready to re-install my torsion bars back into my
Dart. But not sure of is do I tighten up everything
and then put the bars back in? I have the car up
on jack stands. Also do I put grease in the cross
member where the bar goes through to get to the
lower control arms after the bar is in place. Really
kind of lost at this point.
Ken