Thanks for the input, Would you do the grille and the radiator at the same time?
Grille - yes
Radiator - No. Just extra weight when you're putting it on.
I just removed the front clip from mine with radiator. Used an engine hoist so weight wasn't an issue, but putting it back on and not damaging the paint is another story. Any extra weight, especially when manhandling it would be detrimental, IMO. The grille looks like a bugger to get at the fasteners, so off the truck should make that easier. GMC might be easier vs. Chevy, but that's your choice.