Greg Parker
Full Access Members
Having higher rated tires will not increase payload as your axles are what is rated. The load rating for the tire is the minimum or recommended rating to achieve the maximum axle rating. Using higher load rated tires though does allow you to run lower tire pressures and still achieve maximum axle load.
I don't think I ever suggested you could increase the payload with tires (although LTs coupled with an upgraded suspension system, the case might be made that you could squeeze out another 15-20% CCC). My suggestion for LT-rated tires is increasing overall towing stability, especially when getting into heavier tongue weights. Plus my experience is that LT-rated tires often last twice as long as P-rated, with similar tread style / depths. $1000 for (4) new P's or $1500 for (4) new LT's.
I'm not saying I'm going to do it for certain, but with the vast majority of my usage being with a full rig (of people and gear) and/or towing ...I am researching and will consider LTs when the factory shoes have reached EOL.