How hard is it to remove that the lower tranny line from the radiator? Do those tranny line nuts just back out like a bolt? Never seen a tranny line hook up like this before. Thanks

 

Don't know...what kinda/year truck ya got?? Makes a difference. I think in '04 they went to some type clip thingamabob. '03 and older were still a typical flared nut. The lower one should be just like the upper one.