Tire aspect ratio
I got a new to us 2018 Ram 6.7L 2500 and it is mostly great. But it came with Sailun mostly worn out tires 275/R70 18 tires. Escapees right now have a fantastic discount on Michelin 275/R70 18 tires a...
Forum Discussion
When mounting a P tire on a truck or trailer that has a 3640 lb rating its required to be derated by dividing 3640 by 1.1 = 3300 lb capacity.
Another hit on the big P tire vs LT tire is fabric in the P tire isn't as heavy (mil thickness) as the LT tire.
The P275/65-18 weighs 40 lbs and a 51 psi rating
The LT275/70-18 DT weighs 59 lbs and a 80 psi rating..... and is a good indicator of the LT being the heavier built for heavy loads on a one ton srw truck.
Tireman9 rvtiresafety blog has a article on this very problem of confusing a P with a LT in the same brand/tire line.
clicky link
Another hit on the big P tire vs LT tire is fabric in the P tire isn't as heavy (mil thickness) as the LT tire.
The P275/65-18 weighs 40 lbs and a 51 psi rating
The LT275/70-18 DT weighs 59 lbs and a 80 psi rating..... and is a good indicator of the LT being the heavier built for heavy loads on a one ton srw truck.
Tireman9 rvtiresafety blog has a article on this very problem of confusing a P with a LT in the same brand/tire line.
clicky link
