which leaf spring do i need

[canajien]

i am looking at buying a 93 ranger 4x4, 4l, 5 speed, it has a broken rear spring, when i go to car-part.com i get several different choices, how can i tell which one to get?

fiber compsite
steel, (code), exc. B, C, D, E, K and X
steel, (code), D
steel, (code), B
steel, (code), E
steel, (code), C
steel, (code), K
steel, (code), X

i am thinking about getting a matching pair, just to be on the safe side

thanks