What PSI tire pressure are you running on bigger wheels / tires setup? Chalk tested Baja Boss A/T @ 30PSI

Curious what everyone is running on their setups for tire pressure. What tire, tire size, and load? Stock/upgraded suspension? Ride quality?

I have a SR5 4wd with Baja Boss A/T 295/70/17 (33.7") E Load on Rough Country 1.5" Front leveling spacer. When I first put the tires on they over inflated 40+ PSI and it was a rough ride and I felt every bump. 2nd place I brought it to deflated it closer to OE at 34 PSI and still felt bumpy. I decided to do chalk test runs and saw the best even wear for my tire was at a tire pressure around 28 PSI. From there it rode softer and absorbed the bumps. I did add more pressure in it and left it at 30 PSI because I felt it was too low of a pressure to run daily. A little bumpy but not much. I also adjusted the settings so it won't flag the system. The E Load tire is stiffer so I understand the ride quality will not be ideal for daily pavement driving. FYI. All PSI numbers are cold or moderately cold tires.

35psi (LT285/70R17 Wildpeak AT4) typically.

I used the load inflation tables (see "p-metric to lt-metric" : https://www.toyotires.com/media/3729/application_of_load_inflation_tables_20200723.pdf) to determine the appropriate pressure while maintaining load carrying capacity, and rounded up to the TRA min recommended pressure for LT tires.

0801 said:

35psi (LT285/70R17 Wildpeak AT4) typically.

I used the load inflation tables (see "p-metric to lt-metric" : https://www.toyotires.com/media/3729/application_of_load_inflation_tables_20200723.pdf) to determine the appropriate pressure while maintaining load carrying capacity, and rounded up to the TRA min recommended pressure for LT tires.

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Great Reference! Thanks for linking.
On road, I have been running at 39# on my 285/70R18s based on this link: Tire Pressure calculator
It says this:

265/60R20 XL @ 33psi, same as specified for the stock 265/55R20.

Running the Mickey Thompson Baja Boss A/T (265/70R17 XL) at 32 psi.

M2014RN said:

Running the Mickey Thompson Baja Boss A/T (265/70R17 XL) at 32 psi.

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How's your ride quality?

4RNerAndScrubs said:

How's your ride quality?

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Feels just fine. Not too rough on the dirt roads. I may lower the pressure to 30 psi once the snowy weather arrives.

M2014RN said:

Feels just fine. Not too rough on the dirt roads. I may lower the pressure to 30 psi once the snowy weather arrives.

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Nice. I'll keep it at 30 for now and check the wear on the next rotation. Maybe another chalk test too. I don't get snow in SoCal but I'm in CO right now visiting family and drove the 4runner and the ride was pretty good.