110 load range tire is rated 2337 lbs at max sidewall PSI times two
and should be more than your GAWR in order for your TV to stay within
the OEM ratings of that axle
Read that you have a 2002 Dodge Ram Quadcab Diesel, so the rear GAWR
should be north of 6,000 lbs and these tires will NOT provide enough
load capacity. Either go up in size and/or higher load rating than a
110...anything at or above 120 load rating...if your rear GAWR is 6K
If you have a higher rear GAWR, then even higher than a 120 load rating
T speed tire is rated 118 MPH at max sidewall PSI and load
Info in below hot links
Kamstire.com Hankook DYNAPRO HT RH12 265/60R18 110TABOUT TIRES....How to Read Tire Sizes & Ratings