Lowering truck need input on tire size.

[psd_va]

Hey guys so within the next 6 months I plan on lowering truck down. I will be leaving the 2"front spring hangers and the 1 1/2" larger block total of 5" block in the rear with factory springs front and rear. I want to try and get the heavier load springs like the camper package. I already have a wheel picked out it will be a fuel wheel 20x12 -.44 offset and 4.75 backspace. Not sure what size tire its going to look and fit the best. I plan on running a nitto terra grapler tire.

What do you guys think? Also if anyone has pics of a similar setup that would be awesome if you could post.