I’m going to be installing a new radiator into my 2006 xterra to avoid the problems with smod. i have new hoses and transmission lines and coolant. i’m also wondering, is just putting in the new radiator enough to do? i’ve also seen stuff on installing an external transmission cooler. i’m just not understanding fully on what i need to do. i have everything necessary to replace the radiator, is there anything else i need to do beyond that?