If this is the wrong section please direct me to the correct one.

I just bought a 2005 mustang gt 5 spd manual at about 60mph it has a vibration and it gets worse the higher the speed past 60 it has 18x10 rims and I'm putting my new Amr 18x9 rims on it tomorrow and have it mounted and balanced could that fix it? also doing an alignment if it's not this is there any other ideas or had anyone had this issue.

 

Moved to the 2005-2009 section

 

Yes that should most definitely fix it

 

thanks have you seen this or had it happen

 

If after balancing it does not get fixed...check to see if you still have the factory rotor retainers (like a washer) ....normally it causes issues with aftermarket rims.