PORTER BUILT VS CPP. I know the answer. Pics inside

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Both companies have great products. Porter built is real high end and CPP is a good product with economy pricing.. I will buy either one as they both do the job they are supposed to do. My question is, PBF has coil overs and CPP has coil springs.SOOOOoooo, for what i want is a smooth firm ride. Not harsh or stiff. Whats going to give me a better ride?? Im thinking coil springs. Im no suspension expert, thats why im asking. I plan to pro tour the truck and plan on long distance driving. So lets hear your input. Here are PBF arms.



and CPP



I plan on a 5/7 drop like this, well they look like 5/7