The tranny cooler installation labor is $65 but it comes with an unlimited lifetime warranty. The kit comes with all the hose connectors and the mounting hardware and really detailed instructions. It only takes about 1 to 2 hrs. but check the hoses coming into ur "mini radiator" if they enter the tranny then thats it.

 

That "extra radiator" I believe is the tranny cooler, but pics would help so we could tell you 100% for sure or not.

 

camera is broke right now. from what i can tell there are lines going to the radiator then back somewhere. and my overflow tank has red fluid in it and its at the full mark, almost looks like a mix of trans & radiator fluid. like i said best of my discription its infront of the orgional radiator, its all black and looks like a radiator but with no cap and its a little smaller.