I recently installed a Jakes 6" spindle lift on my 2010 Yamaha Drive. Before I removed the old wheels I noticed my rear lug studs only had about 1/2 the threads coming through the lug nuts. When I installed the new wheels and tires I still have the same issue. My lug nuts are seating down to where only about half of the nut is taking thread. Is this normal / safe for the rears in Yamaha? Do I need to replace the rear studs?