if you can find the table that would be awesome. i looked the part number for my torsion bar and it says its for a 2wd gas. my truck is 4wd diesel. i could not find any info on what the stiffness of the oem torsion bars are. it would be nice to know how i can step down. people at the dealer are so dumb. you try to explain what you want, and first they dont know the answer and second they say you cannot change the torsion bar to something different from what the truck came with.