I just got a John Deere drag disk that has a toung like nothing I have ever seen. I do know it is in the KB family but it is not a KBA as I have had both the drag type and wheel carried type. And it is not a KBL as that is a 3 point type. It is heavier than a JBA and I also know what they are. This disk is a 7 blade on a side and 7" blade spacing and shares most of the frame with the KBA but the toung-hitch angle adjustment is entirely different than I have ever seen. I need model numbers to try to look up the parts catalog for it. I cannot post pictures, would somebody be willing to post them for me if I could snail mail them to you?