Attention: TDR Forum Junkies 
My Truck (6200-pounds) and Truck Slide-in Camper (4200-pounds) weigh about 10400 pounds total. The front axle is 4200 pounds and the rear axle is 6200 pounds, loaded.
I have had no tire problems due to weight. I am somewhat of a weight Nazi when it comes to tires. I prefer not to be borderline with tire capacity, and will make a strong effort not to be over the tire capacity with weight. My life experience is that in town, low speeds and in the winter, there is enough safety margin built in by the tire manufactures that you can push it a little. In the summer months, especially at high speeds, the tire capacity becomes critical. Most of us would really be surprised as to how hot the tires get. I might add that is the only time I have ever had a tire failure.
The factory tires were on 6 ½-inch wide wheels, and rated at about 3200 pounds (6400 pounds on rear). This setup was too borderline for me. A little squirmy in winds and the turns and not enough weight for summer travel.
I upgraded to a tire that required an 8-inch wide wheel. As I recall, it was a 3400 pound tire (6800 pounds on rear). This was great. I could still feel a little squirm in wind and turns, but very little. I was a bit more comfortable weight wise. I had Cooper tires. Two sets developed very small cracks within 1-1/2-inch from the bead area. They looked like weather checks. They were not due to load, as verified by Cooper. The second set turned me off on these tires, even though they wore great and rode great. I also had the chrome to peal very badly on one of my alum wheels (used, about 8-years old). I decided to replace both the tires and wheels. It is extremely important to get the proper wheel width to match the tire.
I upgraded my tires and wheels to the 19. 5-inch Visions (7. 5-inches wide) with 245/70R19. 5 XDE M/S, with 4900-pounds (9800 pounds rear axle). I had to modify the front wheel well for clearance, removed the plastic inner liner, and added Timbrens in the front. Not only did the Timbrens eliminate the top tire rub, they also further reduced front sway and float. I am over tired for my load. I could have went with 225/70R19. 5 XDE M/S, but I could not use the Vision wheel (too narrow, needs 6-1/2-inch wheel). I calibrated my speedometer with the 19. 5s.
For the first 300 miles, I suffered from price shock on the 19. 5s. I really questioned the expense. I must admit, I am cheaper than most. After about 600 miles, I can honestly say I did not regret the 19. 5 upgrade. I definitely have less sway, more weight capacity than I could ever use. The ride is stiff, but does not ride like a ping pong ball as I thought it would, with the camper off the truck. The tires do sing. My MPG did not change.
Wayne
I have had no tire problems due to weight. I am somewhat of a weight Nazi when it comes to tires. I prefer not to be borderline with tire capacity, and will make a strong effort not to be over the tire capacity with weight. My life experience is that in town, low speeds and in the winter, there is enough safety margin built in by the tire manufactures that you can push it a little. In the summer months, especially at high speeds, the tire capacity becomes critical. Most of us would really be surprised as to how hot the tires get. I might add that is the only time I have ever had a tire failure.
The factory tires were on 6 ½-inch wide wheels, and rated at about 3200 pounds (6400 pounds on rear). This setup was too borderline for me. A little squirmy in winds and the turns and not enough weight for summer travel.
I upgraded to a tire that required an 8-inch wide wheel. As I recall, it was a 3400 pound tire (6800 pounds on rear). This was great. I could still feel a little squirm in wind and turns, but very little. I was a bit more comfortable weight wise. I had Cooper tires. Two sets developed very small cracks within 1-1/2-inch from the bead area. They looked like weather checks. They were not due to load, as verified by Cooper. The second set turned me off on these tires, even though they wore great and rode great. I also had the chrome to peal very badly on one of my alum wheels (used, about 8-years old). I decided to replace both the tires and wheels. It is extremely important to get the proper wheel width to match the tire.
I upgraded my tires and wheels to the 19. 5-inch Visions (7. 5-inches wide) with 245/70R19. 5 XDE M/S, with 4900-pounds (9800 pounds rear axle). I had to modify the front wheel well for clearance, removed the plastic inner liner, and added Timbrens in the front. Not only did the Timbrens eliminate the top tire rub, they also further reduced front sway and float. I am over tired for my load. I could have went with 225/70R19. 5 XDE M/S, but I could not use the Vision wheel (too narrow, needs 6-1/2-inch wheel). I calibrated my speedometer with the 19. 5s.
For the first 300 miles, I suffered from price shock on the 19. 5s. I really questioned the expense. I must admit, I am cheaper than most. After about 600 miles, I can honestly say I did not regret the 19. 5 upgrade. I definitely have less sway, more weight capacity than I could ever use. The ride is stiff, but does not ride like a ping pong ball as I thought it would, with the camper off the truck. The tires do sing. My MPG did not change.
Wayne
