What's the Difference Between TRD and TRD Pro on a Gentu Tundra?

Our stock truck got 17, 18 miles per gallon with like, heavy 30 fives and skidd plates on it. They were never available with a locker or limited slip of any type. So if you see t r d pro on your gentu tundra, that doesn't really mean anything other than it has a stamping in the bednd, a slightly prettier shock. It does give some, you know, usually comes with different tires, and it's got a little bit better shocks on it and stuff.