Replacing the radiator isn't very difficult, I replaced mine in about an hour. Drain coolant, disconnect hoses, disconnect transmission lines, move fan shield out of way, remove top oil cooler bracket, remove clips from radiator, and lift straight up. That's about it, installation is the reverse. This is a good time to replace hoses and coolant too. I also considered a metal radiator, but I didn't want to wait to order one, so I just tossed in another OEM. I did notice that my operating temperature decreased by about 5C with the new radiator, so it was due anyway. Maybe I'll plan ahead a little and get a metal one next time. BTW, don't over-tighten the hose clamps on the new radiator necks.