Hey everyone- we are trading in our travel trailer for a new 5er, and was wondering if anyone out there has any tips to share on installing a fifth wheel hitch yourself. I have ordered a Reese 18k Signature series. With this hitch, the rails are installed under the bed. I have watched a video on the installation, and read the instructions but if anyone has anything to add - any additional help would be appreciated. I will be installing the hitch into a new body style Chevy HD long bed.