I bought 2" wheel spacers for my P500 and don't know if I should use them or return them. The first problem is that the studs on the spacer are 10mm X 1.25 and the studs on the P500 hub are 12mm X 1.50. The second problem is that even though I can use the existing lugs to hold the spacer to the hub I would need to grind the socket down to fit in the lug nut hole and don't know if the ground down socket would have enough strength to take the lug nuts off when tire change is required; after months of water, mud, and rust. The stud size question is would the 10mm studs on the spacer be strong enough to hold the tires on in rough terrain? Thoughts?