Question about tire sizes

[Charles138]

Hello would like tire size information. I have a flagstaff 25KS loaded weight around 6500 lb and at this time I’m running castle rock st205/75r 14 and I’m looking to go to Goodyear endurance because they’re d rated now what I would like to know is what is the difference in the ST205 and the ST215 and can I go to the 215 instead of the 205,

[My17Ram]

Welcome to the forum Charles!
I run the same size Goodyear Endurance tire on my Shamrock 233s. The larger size may place the tires too close together if your rig has the closely spaced axles. Measure very carefully before deciding to go with the larger size tire.
Myself, I wouldn’t. No real benefit.

[Charles138]

Originally Posted by My17Ram

Welcome to the forum Charles!
I run the same size Goodyear Endurance tire on my Shamrock 233s. The larger size may place the tires too close together if your rig has the closely spaced axles. Measure very carefully before deciding to go with the larger size tire.
Myself, I wouldn’t. No real benefit.

Thanks My17Ram, and my tires re kinda close together about a hand width apart