Towing capacity help
We are in the process of getting a travel trailer. We really like the Sportsmen Show Stopper that ways 4,500 dry. My tow vehicle is a 2013 GMC Yukon XL 4x4 with a 5.3 motor. I've done a lot of researc...
Forum Discussion
APT wrote:
Get a trans cooler and you should be good for your proposed 4500 pound dry RV. Get a WDH and proportional brake controller too. Use tow/haul mode and probably M4. Your first 4 gears are better than older trucks with 4 spd transmissions and 4.10 axles.
Exactly this!
I have a 2010 Silverado 5.3l with 3.08 ratio and I keep it on M4 when im in the hills so it wont search for gears. Even on flat ground i usually keep it there with no real sacrifice to fuel mileage.
I do alot of 6-10 hour trips and I've found that 2500rpm is the sweet spot(about 62mph in 4th gear) to give me all the power i need for the hills and good fuel mileage in the flats. My trailer is lighter than what yours would be(3700lbs fully loaded) but I normally get about 11.5mpg.
If the wind is on my side I get about 12-12.5
