to start off i have a 2000 gs lowered on tein basic coilovers and its snowy here in washington and i been driving and i raised my front but not my back and the under part is hitting the snow you can hear it. well when i hit about 40mph it feels like im hitting really small bumps and increases with speed and in any gear in 3rd 4th 5th so i dunno any ideas of what to check first

 

Are you driving on bad roads or roads that have been eaten up by chains? When did it start being bumpy?

 

no my main roads are fine just the residential roads are still snowy but its a perfect road and i only feel it about 40 and it gets worse as i speed up i dont even know what to check and im at a friends house im scared to drive home on the highway cuz i went like 60 and feels hella crazy

 

do you have any snow/ice in your wheels. That can throw off the balance of the wheels and tires causing vibrations at higher speeds.

 

no theres no snow i just checked, im gonna drive some more to see if it goes away bcuz it did this before but not as bad.