I'm running 35" Duratracs. What's the recommended PSI on daily driving? Just curious. The sidewall reads 50 psi max but I've been driving around with 35 psi since they were installed. I'm also in Fla. (flat as pancake) if that makes a difference.

 

Start at 30 and run a few chalk tests.

28-32psi is fairly common for 35's.

 

Use this chart. Stock is 2500 lbs per tire.

 

Between 27-29

 

If you are running the 315x70x17 then 32 PSI would be the answer per the chart.

The Stock Rubi BFG tire is also a 121 service rating, so the pressure should be the same for best wear and weight rating. The wear pattern will be impacted by rim size, so you might be able to run lower pressures, to improve the wear on a narrow rim, but it would reduce the load rating.

Tom

 

I run 25 in my 35" mountain cats. Good ride and wear

 

30psi frt, 28psi rear, 33x12.50-15 Duratracs... uber comfy on road, off road report tomorrow.