King 3" ID Spring SPR3-10-250 is the King number I am after- not brand picky, but I hate buying new springs if I don't know they are right.
Had 3-10-200 over 3-10-200, it rode well enough but keeping the beam out of the dirt is a bit tough. Would try 300s if they were available and the 250 were not. Let me know what you got!