Jim, if you mean to say things sticking up out of the lawn as "unlevel", then perhaps you may have some manual labor in store for yourself. However, if you lawn is merely unlevel, a few bumps and uneven areas, the deck wheels should take the deck over them with no problem. I can see if he deck had no wheels, then the deck would easily dig into uneven portions of the yard. What kind of problems with the unlevel yard have you encountered since you have mowed at least once with it?? chuck