Spin it off with a oil filter wrench. Get new filter out of the box fill it up with some diesel fuel, or some ATF or your favorite injector cleaner. Also dont forget to apply a little lube to the rubber gasket. Spin on the filter. When you first start your truck, it may or may not start the first time as it has to get all the air out of the system, but once its started it will most likely run a little rough just let it idle for a few minutes. Go back out and check to make sure you have no leaks.....Drive
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