The filter can be easily replaced, if you can get the pan off.Mine Iwas impossable to remove unless the exhaust was removed. I sucked the fluid out of the fill tube.You can sneak the filter out buy removing the pan bolts and dropping the front of pan.Some fluid does remain in the pan.I reused the pan gasket , no problem.I have an 09, 1500 6.0L, 6 speed.