63s up front would kill your approach angle, and they are fairly flat, so you wouldn't achive much lift.
Put the 63s in the rear and the rears up front. Buy a spring hanger kit and move your steering box foward, and you will be happy. Read the toy FAQ on Pirate 4x4 buletin board for all the details. All the info is laid out nice and simple and it is an easy swap if you do a little research.
![Whip :whip:](https://board.marlincrawler.com/Smileys/marlin/whip.gif)