Didn't I already say this...? Weak torsion bar. You could try to find used bars on eBay or a local junkyard for cheaper than new, but you may run into the same problem.

 

so what your sayin is that unless i wanna cough up 400 bucks that the only way i can make it level is with a lift kits.

 

A lift kit will still use your stock torsion bar (I believe), those with the 5" and 6" kits please chime in if I'm incorrect. I know it's frustrating, but take the time to read the responses that people have taken the time to provide you with.

A torsion bar sags and fails just like a regular spring/shock. Unfortunately, they are spendy (as was already mentioned). It was also previously suggested to get a spare (or two depending on cash flow) from a junkyard. They may still sag but at least it'll be cheaper than the $400 for a new torsion bar!

 

Don't know where you got that from... I suggested the possibility of getting a used set from a truck at a junkyard, not a lift kit. You could probably find a relatively new, low mileage donor at a junk yard. They'd be much cheaper than new.

The torsion bar would still be weak if used in combination with a lift kit.

And yes, just like any other spring, they are subject to fatigue and weaken over time.