Mine was full of water as well, but there was also grease at the top of the female splines that prevented it from pouring out. I only realized that when I hit it with brake clean and washed some of the grease away. Then the water poured out. With the dimpled drilled out, I rigged it to be pulled open with a ratchet strap. With some decent tension going, the last thing that got it to pop free was hitting the outside of the female side with some heat. Clean the male splines with some brake clean and a rag, then spray the female side with some brake clean to get rid of the gunk. Grease the female splines, then work the two halves back and forth to clean up the splines. Don't try to reinstall unless and until the splines slide freely; in my case, I would try to get it to the right length, then overshoot, go too short, and get it stuck again. I had to ratchet and heat it a few times until I realized I needed to get it to slide freely outside of the car, then it was a piece of cake.