im going to add this, im not a expert on this but theres a such thing as hub centric wheels and lug centric wheels. most oem wheels will fit snugly over the hub of the axle and the lugs just hold the wheel on vertically while the hub holds most of the weight. if you install a spacer you are essentially turning your hub centric wheels into lug centric and putting all the weight on the lugs. i dont know if the problem but to me it makes sense to me and if you turn the spacers into hub centric spacers then it should fix the problem