Sport, Sport plus, SXT, Sport/SXT
The tailgate has an SXT sticker, one build sheet says Sport, and another says Sport Plus. How can I tell which trim lvl I have?

 

Thank You for your service. Everyone loves the Marines.

Get a build sheet for your truck from here. Should be accurate.

 

It was my honor to serve, I only wish I could do it again.
That's cool, I have that build sheet.
Thank you.

 

That build sheet should indicate what was on the truck correct? Well on my 01 it says I have the larger 16 tires under optional yet the door card says supposed to have 15s on it. Is this normal?

 

Nope. The truck says SXT and the build sheet says Sport.

 

Thank you for your service as well. Nice looking truck!

From wikipedia:

The Sport served as the "step-up" Dakota model. It added the following features to the ST model: an A/M-F/M stereo with cassette player (later, a single-disc CD player), cloth seating surfaces, sport-styled alloy wheels, and carpeted flooring. It was available with all engines except for the high-performance 5.9L V8 engine.

The SXT, introduced for model year 2001, served as the "mid-range" Dakota model. It added the following features to the Sport model: an A/M-F/M stereo with single-disc CD player, air conditioning, power windows and door locks with keyless entry (available as an option), and a premium interior. It was available with all engines except for the high-performance 5.9L V8 engine. An SXT Plus model was available that added "value" features such as an A/M-F/M stereo with cassette and single-disc CD players with integral CD changer controls, a premium cloth interior, and sixteen-inch alloy wheels mounted on sixteen-inch tires.

Looks like you have a Sport with an SXT trim package added. Provided you have these SXT options.