I have a 1995 Civic DX w/a AEM Short ram, and a new set of 205/45/16. Now before I got the wheels the car drove great nice and straight. The day I bought my new 16" wheels I have a serious shake in the throughout the car, starting in the front end starting at about 60mph at 75mph the glove box anad dash and head rests are shacking hard enough rattling the contants of the glove box. When and got the wheels balanced a second time by a different shop (balanced with and without tire for defaults in either).Everything checkout good even had a shop do a visual inspection on the rims just in case I was stupid enough to miss something. Had my personal mecanic inspect the front end and everything seems to be good. I slap on my old set of steel wheels and the car drives great well up 100 no shakes no squeeks nothing. Now wtf????? PLease help please!  

did u get it realined after you put the new wheels on.  

it could be the road mine shakes sometimes but then you just take notice it doesn't do it all the time so it must be the road. but like the person before get the alignment checked. also check your tire pressure.