I installed an 18K Hidden Hich in my 02 3500 shortly after I got it. I knew I would need more than a 16K hitch and it turned out to be correct. I have a 37" 5er and it would exceed the lower limit hitch fully loaded. The 20K hitch was just too heavy to get in and out when I wanted to use the bed for hauling. The hidden hitch comes out in two pieces which makes it manageable to handle in and out.