Tire Pressure - 285/75R17

[JED]

I’m running 38 PSI in all 4 corners on Toyo AT Open Country III C load rated. I’m visually noticing more static deflection in the front sidewalls than in the rear.

Just wondering what others may be running and if PSI differs between front and rear?

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[frosty4x4]

38 psi is way too high. You should be running 285/75/17s at 30 psi.

 

[JED]

38 psi is way too high. You should be running 285/75/17s at 30 psi.

After several chalk tests I ended up at 35 front and 32 rear.

 

[Powhunter]

After several chalk tests I ended up at 35 front and 32 rear.

That’s about where I’m at on E load Toyo R/Ts in the summer. I read 35 lbs is the minimum for LT tires but I’m still getting a little more wear in the center of the tire. I put a Rubbermaid of sand in the back for the winter, but I think I’m going to try leaving it in for the summer to see if it will flex the rear tires a bit more. Should smooth out the rougher trails too.

 

[tacorancher]

For some reason after 3500 miles on my E load Falkens I’ve got 17/32 on the inner tread and 16/32 on the outer. I run 33-34 psi cold which i thought would be plenty. A bit puzzling.

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