It means you can load some **** in the truck and not worry about the tires being overloaded...load range E's are based on an old system that is equivalent to a 10-ply tire...with newer materials in tire construction, load range E tires no longer have 10 plys, but are just as strong....just don't forget, you have a half ton truck...just because you've got heavy duty tires, doesn't mean you can overload it, your axles/trans/brakes are not built for it.

 

I have a brochure in my glove compartment with all the recommended tire pressures if that'd help anyone. Thanks for the help with my question.

 

If the previous owner put E rated tires on the truck, makes you wonder if it has the camper package or an aftermarket spring set up. Not to many people put E rated tires on a 1500 unless they are hauling. If they knew what an E rated tire was than there was probably a reason for them. Either that or the salesman at the tire store did a good job convincing the extra cost.

 

yeah the previous owner pulled a horse trailer. They took really good care of it though. So whats the final verdict what pressure should i run at for best mileage a ride quality

 

It's up in the air...I'm recommending 50 all around...The Burning Rom is recommending 40-45...depends on who you talk to, I'm not here to argue the differences with anyone...just from 11 years of being in the auto repair aftermarket, I feel 50 psi all around would be best for you. The best comfort/mileage/safety psi for what you've described, imho.

 

I would also recommend 50psi at minimum with a 10 ply tire and up to 70 if you had a heavy load. My dad runs 60-70psi in his 3/4 ton all the time. The ride is a bit rough but the tires wear fine. He had a set of Michelins on an 01 that had close to 70k on them. That's damn amazing for a 3/4 tire but they were just about bald too.

Another reason someone would put 10 plys on a 1/2 ton would be rock penetration resistance if they do a lot of driving on rock roads. I've seen rocks go through 6 ply AT and MT tires.

 

ok thanks for all your help everybody goin to put 50 in em right now. yeah lol my 1500 has a class 4 hitch too.