you are going to have to remove everything front the front of the truck except the fender you aren't going to replace.
Do you want the order of steps or something else? What year truck?
Remove bumper, grille and trim, hood, fender, inner fender, fan shroud/support, A/C conderser and lines, vapor canister lines, electrical connectors for headlight/signal lights, radiator, unbolt front of fender you are retaining from core support, and inner fender from core support, remove 2 frame bushing and everything should come off.
I would mark the shims and keep them with the areas they came off of also. Pictures before and during help also. That way you know where everything goes/came from. I would also tape tag all wires and lines just in case.
Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project