Ahh. Find a torx bit that is close to the size of the hole, should be a tiny bit bigger. Tap it into the stripped allen hole. You want to align the points on the torx to the corners of the hexagonal hole. Make sure it seats all the way in, and goes in straight. Just a guess off the top of my head, maybe a t-45 or t-50 would be about right. You can pick up a cheap set that ranges from t-25 to t-50 at Auto Zone, O'rielly's, etc.