the wheels are 3/4 because the trans on the lawnmower had a 3/4 axle all the way, no step down, and that axle is way too short, im getting this axle http://www.mfgsupply.com/m/c/AZ1401-44.html?id=nZefQDh7 and that will barely fit, and i dont think the wheels have hubs, just a solid wheel but i...