Depending on the age of the truck and how it gets used, torsion bars will lose their spring after a time.
With your '97, unless you've been jumping it every day before work, they shouldn't be so worn out!
The bars are always not going to match with the threads. They are two completely separate entities. Usually, either by stock or through dealer mechanics, they will crank the drivers side a little more to let the driver's weight compensate.
You have a few options:
Body lift - Another 1" will probably fix this.
Crank up torsion bars. Not too much! It will give you a stiffer ride and more bounce.
New torsion bars! If you have that soft ride crap like I have, then you might want to look into getting new, heavier-duty torsion bars. The dealers provide all different brands, based on weights, and Sway-A-Way
is supposed to be getting theirs back for sale six months ago or longer [img]/wwwthreads_images/icons/mad.gif[/img]. Check with them to see when they plan on rolling them out!