Tire pressure vs load capacity

Someone have the scale weights of the front and rear unloaded of the truck? Anyone have the weights with max load in the bed?
front axle 4220 lb
rear axle 3240 lb
7460 lb tot
7.3 F250 lariat with two people, recovery gear, bed rug, tonneau cover and full tank
 
Someone have the scale weights of the front and rear unloaded of the truck? Anyone have the weights with max load in the bed?
You’ll want to weigh your own truck IMO. Weights can vary significantly based on trim, factory options, modifications, and gear.

Or you’ll have to get a lot of weights posted by others to try and narrow down where you likely are.
 
Someone have the scale weights of the front and rear unloaded of the truck? Anyone have the weights with max load in the bed?
Just to pile on. The variation between different configurations is significant. Even with the same engine choice there could be several hundred pounds difference based on options.
 
To be honest its not that significant of a difference. Each 5 psi increase in tire pressure is on average a 400lbs increase in load for a set of 2 tires and 800 lbs for the set of 4. Assuming we are just talking about the vehicle options themselves and not whatever you want to carry with you (load), we already know based on previous threads that the the swing in GVW while different between gas and diesel did not swing that dramatically (this 800lbs range) based on options. In addition to that the RMA states to go to the air pressure that exceeds the vehicles axle rating.

Sure if you want a cab over or one of those overland shells or a lumbar rack your numbers will be different. But the standard trucks will be within a range that will span a small section of the chart provided.

To further get into the weeds on this. I have not seen anyone decreasing the pressure in their tires down to the levels suggested by this chart. Based on the example weight provided and the chart the air pressure to carry this load would be 35 psi front and rear. Lowest I have seen mentioned is 45 and most are in the 50-60 range. At 35 psi you would have a load capacity of 4580 lbs per axle.

The next step for figuring out the ideal air for tire wear would be to do a chalk test and see what pressure gives the tire the best foot print under standard load.

As always though with all information in the world, use at your own risk and within your own abilities.
 
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