Originally Posted by tw

It is supposed to be progressive. I agree, it is only a sensation like when the elevator reaches the bottom floor. Only this happens with every low spot on the highway. My neighbor has the exact same model as I do, but never hauls anything. His rear hitch is 2 inches higher than mine. I do frequently haul heavy loads, and never have less than 200 lbs plus leer topper. I guess the suspension has lost much of it's mojo.

I forgot to mention that I took it back to the dealer and took a tech for a ride. He agreed with me that it felt strange. He checked it out, and found nothing wrong. I asked for suggestions and his were similar to others here. The trucks with the lighter package were not designed to do more than occasionally carry weight.

I decided on the roadmaster system. Within 20 minutes of opening the box I was done. Wow, what a difference. The rear springs are now more progressive instead of spongy then suddenly unyielding. It now has the rake that a truck should have. Thank you all for your input.