tire pressure

What is your question?

I cannot determine what the correct tire pressure is for this truck. The tires say one thing and the sticker on the door says another. According to the door, I should have 50 psi in the front and 80 psi in the back. Why would the amounts be different? I am a first time truck owner, so please forgive the ignorance. I just want to make sure my truck gets the best gas mileage I can get.