I have a jeep with a 4.0 and was going to instal a transmition cooler. i was wondering how hard these are to install. I am pretty handy around cars, but havent messed with any thing like this. Will the lies for the cooler match up with my factory lines or will I have to do some modifications? <br /><br />Also, where would you reccomend buying one of these?<br /><br />thanks for the help