It's aluminum, not lead solder. It can resist compressive forces. The wheels themselves are made of aluminum and the lug nuts bear right down on them with no steel sandwich to spread out the point load. After 5k miles the lug nuts were all still tight.I'd like to know why I dont have an alert for this thread. I should be subscribed as I replied.
Ya theres no fricken way putting aluminum between 2 pieces of steel would ever last. The wobble is still there and it would act like a ball peen hammer every time the wheel turned. Smashing the aluminum thinner and thinner. Your probably lucky you didnt loose the tire and kill someone.
Take your truck to a mechanic!