Well farm1boy, I have the same issue. Won't go...move. Noticed traction/drive belt seemed like too much slack, put new one on, nuthin. So what I'm gonna do after I cool off, is check the "key" deal at rear wheels. I notice on left side, is a plastic sleeve over axle, and is distance play between wheel and trans or axle housing, also you can push the mower forward or backward with or without the rod thing in back pulled. Hoping the key may be culprit. That maybe someone tried to push the mower without pulling the rod, maybe breaking the key. IDK. I'll see.