97 Blazer - Removing radiator

My son rear ended another vehicle and damaged his front bumper. It caused a small leak in the radiator and he's tried to get the radiator out. The bumper is removed along with the lights. How is the radiator secured? Where is a good place to find a new bumper as well as the center cover in the hubcap? Thanks for any input.

I suggest buying a repair manual. US$15 Chiltons or Haynes.

The bumper and cap can be cheaply bought off of ebay.

also check out local salvage yards in the yellow pages...