maybe you should try to install some strut bars on top of your engine to hold it in place.
engine rubber mounts or timin out
Need more info like what is the vehicle doing when it shakes, is it idling in park, driving down the road, braking, driving at highway speeds, etc.
maybe you need to have wheels balanced We are actually having that same problem with our car and it isn't the tires. We just bought brand new ones had the mounted and balanced and also a front end alignment done on it and it still shakes while driving..
Check your motor mounts.
Its either timing or fuel intake problem.
This happens sometimes when there are teeth missing on the fly wheel
you will need a front wheel alignment
road V.A
You may have a ball joint going out or your wheels are unbalanced
if it shakes while your braking your front roters could be warped or if it shakes while your driving try balancing the tires at a tire shop.
Carburator problems -- dirty gas -- water in gas
Mine doesn't, but if yours does, it could be due to warped rotor (if it shakes when you are breaking) or unbalanced/unevenly worn tires. Could also be a broken or missing engine mount (if it shakes all the time).