I installed two timbres on a 2012 Dodge using the gasket that came with it. I didn't notice any difference in the movement of the truck without towing. I have only towed a toy dump truck 5th wheel a short distance so far and this product works exactly as advertised. The truck is very close to the drain with the 5th wheel on the truck. The fifth wheel has a claimed hitch weight of 3090 pounds and I also have a 98 gallon fuel tank that is located at the front of the truck bed. Before the timbre was installed, the truck would squat a lot when the fifth wheel was connected, but not now. I would recommend this product in place of an airbag kit. I have used airbags in the past and was very tired of having to inflate and deflate depending on what I was towing. Timbren should install it and forget the product type.