Runner,
I hate to take credit but I started the problems with the tire clearance with JD. I actually punctured a front tire. Yes I have turf tires installed, so they used to hit the front bh subframe brackets. JD made a set of brackets to replace the original BH brackets, and the tires do not rub anymore. From what I was told by my JD dealer, I have the only set of brackets so far. I don't know when JD will make these brackets available to everyone. I'll get some pictures of the new brackets posted soon.