We just happen to have a 2014 North Trail RTLS. And we did have a 2013 Chevy Silverado LTZ 1500 4x4, and towed the RTLS less than 10 miles, just to our home. However owning 6ea 5th Wheels we learned the given weights are almost always wrong. And since we go West to Colorado, Northern New Mexico, I just wanted more Truck. if you have ever pulled the Colorado Rockies, then you know you can never have to much truck. I ordered a 2015 Chevy Silverado, 2500 HO LTZ, 4x4 with a 6 liter and all options. And he standard rear gear is 4.10, and took ownership on Feb. 26th. Haven't towed the RTLS yet, but will be taking a run to Tennessee in April… But I feel very confident the 2500 HO will do fine. We have had several Chevy 3500HD, Duramax with a 3.73 rear gear, and our last Mobile Suites weight came in at 18,900lbs, loaded for our 4 to 8 month trips. I have always felt you can never have to much Truck but you can have to much Trailer.. Keep in mind it isn't always the pulling, but it's stopping the load. Good luck on your choice. Happy Trails…
P.S. We will be going to California this summer and up the Coast to Washington State and back down to Colorado, Northern New Mexico, will leave LA, Lower Alabama in the middle of June and will return back to home base in Oct. Happy Trails..