I can't get a spring rate on the stock waggy 7 leafs from jc whitney. How do they compare to the 300 #/sq in Rancho 44044s?

are those ranchos the standard of leaf springs or what?
I hear alot about them.
Do u buy them for different vehicle application or is it just make the vehicle fit the springs

they're full size jeep 2.5-3.5" lift springs. If you search on 44044 you'll find more info than you know what to do with.