You are going to have to pull the front fenders & grill or you will damage them. Past that, you MUST brace the front end. The way to do this is to remove the doors and either weld or bolt a brace between the door pilars from front to back and also between the rear door pillars. If you try to lift the tub up without bracing it, you will tweak the body and it won't ever be correct unless you do a lot of metal replacement or body shimming. Once you brace the body, slide some 2x4s under the rear of the tub & the front of the tub and get 4 guys to lift it off. Be very careful of anything in front of the firewall, don't lift from there if you can avoid it. That part of the body is fairly "Fragile" compared to the rest of the tub. But most of all, just use simple common sense. It is pretty easy to lift the tub off with some buddys. They aren't that heavy.