When reinstalling the torsion bar, I've had to disconnect the spindle to let the LCA droop a tad more so the bar slides in easier. Someone has already mentioned that above though. If you're having that much trouble, you could always unbolt the LCA stud from the k-member to allow it to drop more, even though you shouldn't have to. If you do that and it's got a rubber bushing, just make sure you don't tighten it back up until it's back in a neutral position (ride height).
Are you sure the torsion bars are oriented properly? Are they new, or used? Maybe someone installed them wrong before and introduced some twist in them that's messing you up??? Just brainstorming here.
Lastly, for complete step-by-step instructions, I'd recommend grabbing a factory service manual. It'll have very detailed instructions on how to install torsion bars and you can download it for free.
