2009 -2014 F150 XLT Crew 4WD "LT C-Load Tire Option"

I emailed BFGoodrich about the correct tire pressure going from a P series to a LT series. They said the 47 psi is correct. Also said the prior phone rep was wrong at 55 psi.

Said Discount tires pressure of 41 was too low.

So I'll try the chalk test at 47 psi. Don't think 2 psi is going to change much.