Look under the drivers seat on the inside of the frame rail. Remove the clips and replace. The clip on the engine side of the filter (as opposed to the pump side) will need a quick disconnect release tool. You can find these at your local auto parts store. Put the tool on the output side of the filter, and push the tool toward the line, then, just pull the line off!
Make sure you unbolt the filter housing piece or you will find the filter won't come out. There are two 13mm bolts directly under the frame rail holding the housing in place.