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Old 07-22-2018, 02:49 PM   #4
wingnut60
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Join Date: Sep 2005
Location: Where we park it
Posts: 2,838
Nothing you can do will increase the RAWR from the factory number. This is determined by the engrs at GM. Air bags will help with any rear end squat caused by the pin weight of the fiver.
Most all axle assemblies themselves will have a higher weight rating by themselves, it is the rest of the truck that is used to determine all the numbers. I have always considered the carrying capacity of the tires as the ultimate limit for weight, and then don't like to not have some overcapacity where the rear tires are concerned.
If you take my earlier estimate of max pin weight of 2770, and the RAWR of 6200, that gives you 3430lbs to work with. That 3430 would include the weight of the hitch and any other items that are in the bed.
Again, I would not worry too much about the 6200lb axle, but would NEVER go over the carrying capacity of the 2 rear tires.
Really need to get some actual weights as you would be loaded to go camping--only then can you be sure where you are on limits.
Joe
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