Torsion Bar Not Seating

How are you trying to install the torsion bars? what are your steps you use to install a torsion bar.

Many years ago in my youth i used to have a hell of a time getting torsion bars to go in the lower control arm. Found out I needed to loosen the lower control arm castle nut to get the torsion bar in .

is the torsion bar lined up with the cup, for lack of better word, on the lca and going in , or is the torsion bar not aligning with the cup.