I received this kit today and installed it on the deck of my 38" Huskee lawn tractor. The kit doesn't say where to install it, but having seen several lawn tractors with these plugs installed, it simply mounts on the mower deck over the blades, as long as there is clearance between the lower part of the "hollow" bolt/quick connect and the mower blades themselves. The hole needed is fairly large. I had to pre-drill a 1/4 inch hole and use a "step drill" bit to make the hole large enough to accomodate the quick connect. You can check your particular mower to see if the deck has a pre-cut hole, where you can just punch out the cap (similar to the punch outs in metal electrical boxes to accomodate cables). This can also be used on a push mower deck. In fact my Craftsman Push mower came wth one of these installed.