Jesus, the Walking Torah?

Jews and Christians have been historically divided for centuries. The main reason for that division is obviously the Christian belief in Jesus as Messiah, what amounts to the Trinity which we'll get to later. But another huge difference is the strong belief, on both sides, that believers in Jesus are not expected to live by Torah. Interesting contradiction when you consider that Torah is a good chunk of the Word of God, right?

And consider that God "spoke" the creation into being (Genesis 1) and that Jesus was the Word: John 1: 14 ~ "And the Word became flesh, and dwelt among us, and we saw His glory, glory as the only begotten from the Father, full of grace and truth." (NASB)

The whole thing can be summed up in John 1:1 ~ "In the beginning was the Word, and the Word was with God, and the Word was God." But what part of the Word was John referring to? When Jesus and John referred to the Word, there was no New Testament. There was only the Old Testament, as Christians call it, or the Tanakh, as Jews refer to it--or more simply, the Hebrew Scriptures. The Bible says the Word is literally God Himself and Jesus was basically the walking Word. Could we say Walking Torah? Or is the "New Testament" simply a thoughtful, gentler revision of the "Old Testament"?

And so can we rationally say that the "New Testament" (roughly 1/3 of the Scriptures) basically replaces the "Old Testament" as far as in how we live our daily lives? If we believe that the Torah is not for Christians, then that is basically what we are saying. The Word has changed or has it?