You had an XB boxblade that would barely touch the ground on your BX2360? WOW
Sorry I didn't see this before. The lift arms on a BX only go down to 9" or 9.5" (to the center of the lift arm ball).The Xb box blade is a little small on a BX, I thought it looked funny. I think it could handle a full size 4ft no problem. I also have a woods RBC60 scraper blade that is the same way. It wouldn't work with the QH because the 3PH would not go low enough so I drilled to holes in the QH to lower it.
How low does your 3PH go?
Boy, I understand that problem! I tried using a cat 0 Brinly 12 inch, 3 point, 1 bottom plow and it wouldn't go down far enough to plow deeper than about 2-3 inches. I tried setting it up by driving the BX25's left side up onto 6" ramps so that I could get the plow sitting flat at the 6" plowing depth. I figured that I could fine tune from there. The plow wouldn't go down far enough to touch the ground, no matter what I tried. I finally got some info from others on this forum on drilling additional holes in the lift arms 2 inches closer to the tractor, and I bought another adjustable side link for the left side to match the one on the right so that I could lower that side too. I haven't yet tried out all of these modifications, so I still don't know if it's enough. Is it possible that Kubota adjusted the 3 point hitch to give more height, but lost that same amount on the low end? It seems like all they would have to do to achieve that is to change the position of the lift (arms?) on the splines coming out of the 3 point housing.
I have learned that there is a fine line between full size on SCUT implements. I am not buying any more before I measure the lift arm pin location.