I realize this is an old thread now, but I have boost wheels and haven’t been able to mount the spare.
Does the D1 tire carrier bolt onto the defender door, without any modifications? I guess what I’m wondering is if there is any curve in the d1 door that you have to compensate for some way when mounting this to the flat defender rear door.
Also, what kind of support have people been placing behind this? Probably a lot more leverage working on the door after this gets installed.