Oh, and 44 lbs is on the side of the tire.
if you are going to use a "recommended" amount of air, then go by the sticker on the inside of your drivers door frame. it should recommend about 32 psi on your stock tires. i run mine at 28 psi. however, as stated previously, the "best" way to find the correct tire pressure for your tires mounted on your rig
you will need to preform the chalk test.
on my MTR's it says that the max load is 3305 lbs at 65 psi, and that's per
tire. you have to remember that each tire is only carrying about 1/4 the weight of the jeep. now, that's not exact, as some tires carry slightly more weight than other tires (think engine), but its pretty close. so assume about 1/4 of the weight of your jeep on each tire. lets also assume that your jeep weighs about 4000 lbs, which is slightly on the heavy side for a jeep. given these assumptions, then your tires are only supporting ~1000 lbs each. with this kind of load, you are in no way near
the max load
capacity for those tires. so, correspondingly, the psi of the tire should be nowhere near the max load capacity.
also, the MTR's are a load range D tire, meaning they have stiffer sidewalls than a load range C tire. that means they are going to ride rougher than a lower load range tire would at the same psi. that means you should probably run them at a slightly lower psi than you would a load range C tire in order to get the same ride quality.