The new radiator should have a metal sleeve for reinforcement in the upper radiator hose. After removing the fan shroud and fan, then radiator should unbolt and slide out after all the hoses are removed. Then hook the new one up and refill and bleed your cooling system as you would normally do. Don't forget that the transmission cooler lines will have to be removed and you will have to recheck your tranny fluid as well afterwards.
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record