I went with the Toyo, M920- 245/70R-19.5” tires Load range G rated at 4540 lb’s. I have had them on now for a year and half. I bought the tires from a local tire shop that does a lot of semi truck & heavy equipment tire business. The guy that did the tire install has been doing big truck and heavy equipment tires for over 25 years. He showed me when he was balancing them that they were real uniform as far as being round. He said some tires it really shows how out of around they are when they are spinning on the balancer. I hope that made since what I was trying to explain. They took 3oz to balance.
My F350 SWR has the 7.3 liter diesel with a 4” exhaust and straight through muffler. I don’t hear the tire noise much once I am at highway driving speed. When I let off the throttle like going on to an exit or descending downhill they do sing quit loud. I have been on several trips carrying the camper since putting the tires on. So far I am happy with my decision, the tires stiff side walls and the way they handle is a big improvement when loaded with the camper. Last January I had the camper on during a pheasant hunt and we got 8 to10 inches of snow on our last day. I drove in some pretty deep snow on dirt roads and the last third of the day the roads were quit muddy and I didn’t have any problem. And then on the night driving home I got caught in a snow storm on the highway. At times I had to adjust my speed because of visibility and icy road conditions. I never felt like I had to slow down because of the tires, just because of the driving conditions. The tires handled fine with the big 11,1/2 foot Lance camper on. Not sure but I think they probably handle better in those kind of conditions with the weight of the camper on than they would if the pickup is empty.
Thanks,
swhunter