I replaced the water pump when I rebuilt the car (89 GT 5.0) and then had a cooling issue. Replaced the new pump with a high flow pump and can’t seem to get the thing to stop leaking. I’m close to setting my car on fire. I do not have the original. I noticed there are at least two gaskets between the pump and timing cover that fit, but the ports are different. Best place to get the right pump and gaskets? Could the timing cover have been replaced from a different model before I got the car? I’ve tried the black permatex, just gaskets, and only the first time I installed it (with too much permatex) when the engine was on the stand did it not leak. Picture of the proper backing plate? Gasket pictures?