Assuming your 13K weight number is a dry weight. The newest round of 350/3500 SRW will handle it if you watch your pin weight. If you buy a newer dually, then you will not have to worry about it.
Are you sure on that weight is the big questions. These were big heavy trailers that needed three axles.
Chris
2021 F150 2.7 Ecoboost - Summer Home 2017 Bighorn 3575el. Can Am Spyder RT-L Chrome, Kawasaki KRX1000. Retired and enjoying it! RIP DW 07-05-2021