anyone know if i can slab some 305-70-17 terragrapps on my 2wd 1500? got a 2" level kit on it

Stock wheels, probably not. Aftermarket wheels will probably need a fair amount of negative offset.

what about 285-70-17

That's what I have on mine.

thats what i think im gonna go with but i have been thinking about maybe going with some mud terrains, any opinions on mud terrains on a 2wd? just think it would look a lot more aggressive than all terrains