The load range letter on light truck tires indicates their ply rating.
Tire load range d vs e.
A st225 75r15 load range e tire like am10303 will have a capacity of 2 830 lbs at 80 psi.
A truck with load range d tires can be run with the lower air pressure for a.
Lt metric lt flotation and lt numeric tires are branded with their load range load range e or lre or their ply rating 10 ply rated on their sidewalls and list their appropriate load range letter in their descriptions as lt245 75r 16 e 7 50r 15 d or 31x10 50r 15 c.
For example an e load range indicates that a tire is equivalent to a 10 ply construction tire.
Historically more plies gave a tire a larger load carrying capacity so manufacturers would count the plies and use this number to denote carrying.
Lt sized tires featuring section widths of 305mm 12 50 or wider have their.
With trailer tires you always want to have them inflated to their maximum that way you get the best handling braking and wear characteristics.
Special trailer service tires have load ranges of b c d or e which correspond to their specific ply ratings 4 ply rated 6 ply rated 8 ply rated or 10 ply rated.
Basically the only difference between the two is the weight capacity.
If you have a dual axle trailer and use four tires then your c class tires can haul up to 7 280 pounds.
Another option would be just to upgrade to a wheel and tire package like the kenda tires and wheel part am32680.
D and e class tires will carry more weight.
Tires with a higher load range can carry heavier loads.
For load range b tires etrto iso metric standards.
The thing to watch out for is not just load range limits.
Load range d has a capacity of 1 220 lbs at 65 psi whereas load range e has a capacity of 1 520 lbs at 80 psi.
Load range ply rating a 2 b 4 c 6 d 8 e 10 f 12 g 14 h 16 j 18 l 20 m 22 n 24 load index.
Plus how many tires are on the axle.
The maximum load range for a trailer tire depends on its letter rating and psi.
All tires are constructed of rubber and cord layers referred to as plies.
Therefore load range simply tells how tough the tire is and the allowable psi.
The load index on a passenger car tire is a numerical code stipulating the maximum load mass or weight each tire can carry.
In realitly this tire is not built with 10 plies but rather one or two plies of equivalent strength.
Load range d tires only provide more capacity and a harsher ride if they are inflated to the higher rated design pressure.
I have linked an faq on trailer tires.
Load range is based on an older measurement called ply rating.
If the wheel has a similar weight capacity you will be good to go.
