The likelihood of a bent sway bar (except the "kink" which is supposed to be there) are slim and remote. The bars are made from a special steel which can have a torsion load applied over & over again without failing. You'd have to remove it from the car and put it in a hydraulic press to bend it?! Now if your car has been in an accident and a load has been applied from the side, this could bend the lever arm portion of the bar, but there would be other damaged parts also (end links/main control arm).
If it's been repaired and failed again, I would figure that your subframe was probably welded in a half-arssed way before. This means NOT dropping the subframe and doing the work properly. The subframes cannot, I repeat, cannot be repaired properly without removing the subframe from the chassis. The only type of failure with the sway bar I have seen is the washers/clamps/collars which are supposed to keep the sway bar from shifting laterally. If they're loose/missing you'll get the dreaded "clunk".
Don't simply take you subframe to the local do-it-all shop. To make a repair which will be permanent, the welder/fabricator needs to understand the nature of the problem before making the requisite repairs and reinforcements.
I do offer complete buttressed subframes but shipping from here to your neck-o-the woods would be prohibitive.
Hope that helps.
Redcoat Raceworks. Performance parts and custom fabricating for Contours, Mystiques and Cougars. Specializing in chassis and suspension parts. Custom end links, control arms, strut tower bars, engine torque braces, etc.
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