96 K2500 Torsion key recommendations?
 

I've had the truck for about eight years and have been gradually doing needs and wants and this one falls into both. The previous owners cranked up the torsion bars to get bigger tires under the truck. I'm hoping that replacing the keys will fix the horrible ride quality. Does anyone have a brand recommendation? Part of the issue is that I don't know how much they lifted it when cranking on the keys in the first place. It's currently sitting on 285/75R-16/10 tires.
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