If you find a good parts guy, or one that will let you in his catalogs you can find alot of info there. Spring rate and height, what ends, spring rod diameter. It's all in the back of the book. (TRW book has it) I have helped several people find the proper springs for several applications this way.
Dan
The DotRod rides again.
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He's not the sharpest tool in the shed but he is a real tool.