A better choice is to use an LT rated tire .
The LT scale is about 15 % tougher than the ST scale .
A perfect upgrade for your high dollar Arctic Fox is specifically :
Goodyear Cargo G26 size 225 /70R15 load range D .
It is placarded at 2540 # on the LT scale at 65 psi .
It is made in Germany or France .
It weighs about 33 #
It fits every wheel that your current ST 225/75r15 load range C fits without modification .
The G26 is widely available from Goodyear stores and Tire Rack .
This is not to be confused with a Marathon Radial ST tire .
G26 Speed rating is 106 mph , not 65 mph like your current ST tire .
Consumer Reports just published their SUV tire ratings in the November issue .
For the third year in a row no Maxxis tire scored above the LOWEST 25 % of the ratings .
The Maxxis tire , made by Chang-Shin of Taiwan weighs about 30 # in a load range E , and is a 65 mph tire .
The reason to upgrade is that with the LT tire you will be able to zip across the California Desert in 110 degree heat and not have to get out and change your blown ST tire .