Any advice on how to remove the oil cooler (heat exchanger) on a 2004 RUF? It bolts to a plate that has 3 bolts going into the transaxle driver's side. I removed the 3 bolts and the component jiggles in the housing, but it won't come out. Is there something on the back side that holds it in, or does it have o-rings just keeping it in there tight? I just don't want to break anything.