That made me go take a look at my crossmember to see what it looked like. It just has a C bracket bolting the crossmember to the outer frame rails with a single bolt going through it. But it's a boxed crossmember vs an open sided C channel crossmember. I think my boat is listed around 425# dry weight but it has floors, sides and a center console so I'm not sure if they are included in that weight. Add around 220 for the motor and then a single battery under the console and 9 gallon tank in the rear. My boat is pretty easy to move around so it might be correct. I may look into ordering some spare C brackets and bolts to keep in the truck or boat just in case something like that happens and the bracket cracks I would be able to fix it.