adding the drop member in the front should not be an issue.... I mean in the real world a big block is only a couple hundred more pounds than a small block... thats not even equal to one fat chick. As far as the 7500lb tow capacity..... the total weight of the trailer is not a concern like the actual tounge weight. The total weight needs to be considered on the braking and engine torque aspect. If your tongue weight is still less than 500 lbs you are still in the play ground and also by the time you add that much tongue weight, your front axle will take less air..... until you rail the brakes that is
