hey guys, I just changed my stock civic rims for some 17" Eagle alloys, when I'm going 50+mph the highway, the steering wheel starts to shake, this is this an alignment problem right??? and I think it is because if I let go the steering wheel my car will slowly move to the left.... so guys any recommendations?? and what else do I need to do when I put new rims to my car other than the alignment??? ohh and one more thing.. when 3 or more people get on my car and I pass a bump or something that makes my car move up and down, I can hear my rear tires like touching the metal of my car or something, how can I fix this?? the tires are 215/40/17 and the wheels are 17x7.5...is this a suspension problem?? will it do the same thing with some other 17" rims??? so guys any help with these problems would be appreciated.... by the way, I'm planning on selling this car, check out my garage or there's a link on my sinature and tell me how much can I ask for it....