Doesn’t the BD and BL have different suspension? I wasn’t aware we had verification that the 285/70/17 fit the BD? All of it seems like minor fit issues, if there are any. My main focus is on the HD front axle.Ford seems to be pretty focused on limiting factory to 265/70/17 on the 190 axle. They have to warranty every ham fisted owner, reasonable owners should be able to use the 190 with the larger tires without issue.BL has the 285/70s with both crash bars so we know they are a direct swap. You are right on getting different crash bars and probably a 1/4" spacer for 285/75s, maybe even have to do the 1-2" lift that Sas has.