I will look in the paperwork in the truck. that GM Envelope where everything from the sale is at and see if there is anything in there . I Do however know my Truck is Strangely equipped from this dealership then the ones i could find locally. I got the Truck from Salem Indiana. (way out in the middle of no place i would live land) its WT , it has Power everything .Trailering package, all chrome bumpers and aluminum wheels .Its the only one i could find with power windows ,doors and Mirrors, Keyless entry and HAVE VINYL Seats. Absolute Must for me Work Wise. My Assumption was that this dealership is so big out there in the country they order them to specs they can sell to farmers.
Anyway if i find anything with a option number ,code or information that would be useful i will post it. It will be over the weekend when i use the Truck...
Trailer breaks makes a way better Ride and less wear on the truck. not just the Truck brakes.