D to E rated tires

Dtank wrote:

Vulcan Rider wrote:

Lon-Str wrote:
Thinking of going from 8 ply tires on my fiver to 10. It will involve upping pressure from 65 to 80 psi.

What exactly leads you to believe that an increase in pressure would be needed ?? It probably isn't needed at all.

The Max. stamped on the sidewall is NOT the recommended pressure in all applications. It sounds to me like you are putting on tires with a higher capacity and since your actual load does not change, neither should the recommmended pressure.

BAD info!..:(

OP - try checking for the rated pressure on the *back-side* of the wheel. Common location for aluminum wheels.

If it's not there - it might be on the inside of the wheel - but that's doubtful.
The wheel mfgr might be a source - if you know who it is.

(Steel wheels = another doubtful on mfgr source)

Also doubtful that "asking a/your tire man" may help - other than selling you some wheels you may not need.
(However - he might be a good source for the Taco Bell menu from his previous employer..:R..)


Bottom line -
*YES* - you *DO* need to run psi at -or real close- to the max indicated on the sidewall (which is usually 80psi for LR E tires).

.

You at parroting the ST band aid info! Most ST tire manufactures state full sidewall pressure in a hope that there tires will last 3 years. If the same tire is used across a trailer manufactures line for many different weight units, why would they all need the same inflation other than the product is questionable to start with?

Chris