The front tire on the Chevy SSR went flat setting outside. After removing the nuts the wheel will not come off the hub. I know the expansion and shrink on the aluminum wheel is different than the hub and it must be some of the problem. Any tricks to breaking the wheel loose? I blew it up to 50 pounds and beat on the back side of the tire with a sledge to no avail. I put a pint of slime in it in hopes of driving it to a tire shop and it leaks down 20 pounds in 10 minutes. I take it the cold is keeping the slime from migrating to the leak. Kind a hard to check for the leak in 13 mph wind at 12? with water.