Hello, hoping someone can help me with this. While doing the lawn a piece of ? got stuck in my blades shearing 2 of the 3 bolts of my mandrel housing. I have a a craftsman 20hp twin, model #917.272911. I've ordered the mandrel housing on ebay but it does not come with the ball bearing. So my 2? are, can I use the bearing from the old mandrel? and any tips on removing the mandel from the deck? Thanks in advance for your help.