Well I installed my new megan coilovers, everything went on with ease and the height was set properly. This was about a month ago and I had my gst rims on the car at that point. I just purchased evo 9 wheels and put them on last week, now it seems like the tires are lifting when im on uneven surfaces. When I drive through my grass and it becomes uneven a rear wheel will spin like its coming off the ground. The coilovers are not bottomed out in fact I just raised them because of the wider wheels. I dont drive the car alot and still need to take it for alignment im just afraid of causing harm to the drivetrain if the wheel lifts when im pulling out of inclines. Any thoughs of what I can do to stop this?

Go get your alignment then come back

The Coilovers will not have as much travel, so the wheel will lift off the ground on transitions or uneven ground. They are designed for limited conditions like on a track. OEM has to be able to adapt to more conditions.