Tire doesnt say recommended pressure, and i know a few people on here have some BFG A/T. What should it be at?

Thanks

 

Im running 36 in my 32's. Seems to be a good all around pressure, not to soft not to stiff

 

Correct tire pressure is based on the vehicle, not the tire. The correct pressure is usually stamped on the inside of driver's side door along with the GVWR.

I have BFG Muds and they indicate 50psi max, but the proper pressure for my truck is 35 psi.

If your tires are larger than stock than you usually need to run a lower pressure than what is stamped on the door.

 

31 x 10.5 x 15, BFG A/Ts

Use the cold pressure stamped on the vehicle for a stock size tire. Never set pressure based on the number on the tire itself. That is part of the reason why Ford Exploders were flipping over and killing people.

Some adjustment may be warranted based on deviation from stock tire size, of course...

 

Only partially correct. You want to run the vehicle manufacturer's recommended pressure if your tires are the same size AND load range. And just by having bigger tires does not mean lower pressure. I have 265/75-16 4 ply tires, and the max is 44psi and I run them at about 36. However, 265/75-16 same size tires also come in load range D (max 65 psi) and load range E (max 80 psi). If you only ran 35 psi in these heavier duty tires it would damage the tire and cause really uneven wear (I see this all time having worked in a tire store for 4years). You can also go bigger like a 285-75-16 and that will be load range D or E, and they require anywhere in the neighborhood of 40-50 psi. But to answer your question about your BFG's what load range and max psi are the tires?

 

the load range on BFGs 31's is C with max psi of 50 i run 40 in the front and 45 in the rear that is because i tow and when you tow you need more air in the tire to get the full load capacity of the tire. i also worked in a tire shop and i did all the heavy duty vehicles that came in.
P tires are from 35-44 psi
Load C are 50 psi
Load Dis 65 psi
Load E is 8o psi

 

You only run higher pressure in the higher load range tires if you have increased the load on the tire, such as towing. You will not damage the tire by running it at a lower, but proper pressure for the weight it is supporting. Running higher pressures will just wear the tire out faster by wearing the center of the tread.

I run 33x10.5 R15 BFG tires, load range C on my K5. The max load is 2600lb at 50psi. The proper inflation pressure for the axle loads on this truck/tire combo work out to 25 psi in the rear and 30 psi in the front. I’m on my 2nd pair of these tires and achieve even, uniform wear with these lower pressures.

To determine your inflation pressure using tires with a higher load rating than factory use this formula:

tire psi = (operating load * max tire psi)/rated tire load