when i start driving past like 6o mph my car starts to shake, i can feel in through my gas pedal and through my seat and like my whole car, anyone know what this could be??? i have 93000 miles on her and i just put on a new timing belt/water pump. i also jsut got some wheels off of the internet and put them on my self, the shaking started to hapen right about the time i got my wheels so i was thinking maybe that could be it, anyone have any ideas??

 

are they on in the right rotation direction?

 

Were your wheels pre ballanced before you got them? Id take it to a shop and have them reballanced.

 

+1 for balancing