Recommended Tire Pressure for 33 x 12.5 Tires

[Crazydrummer74]

Hello, I just purchased four new tires and rims, and was wondering if anyone has recommendations for tire pressure. Tires are Toyo AT3's (33 x 12.5 x R20), wheels are (20 x 12 -44) Ultra 254 Carnivore's. The company I purchased them from recommended stock pressure (39psi), but in my experience I always find that it's overinflated and the center tread wears out before the sides.
Any thoughts?

 

[GIJoe2010]

Maybe start at OEM pressure, check the tires for excessive bulge on each, drive around at that PSI and see how mileage, road feel and wear patterns work and adjust from there.

I’m running some 35/12.5/17 Kenda Klever RTs and looks like OEM PSI is just about right, but again I’ll drive it a while and see how wear pattern, road feel and mileage looks and adjust as needed.

 

[Hogman338]

Read the load inflation tables

https://www.toyotires.com/tires-101/tire-load-and-inflation-tables

I'm seeing about 53 psi to match factory load capacity. I run 40 psi in my Toyo AT3 305/70r17 tires that are load range E. Those tires have a lot more sidewall than 20s & can run lower air pressure per give weight loads.

 

[ram1500rsm]

55psi per tra specs will exceed your door specs with that size. It won't be a soft ride for sure