[84 400]

I am not a fan of big rims at all. to each his own. But at stock high i would go with a 17. Also i think the black rallies look sweet for that truck. match it prefect. As i said before though i am mkore into big rubber rather then big rim. My cusin ran 20's on his truck at stock height and they did not look like 20's at all. they looked like 16's. after he lowered it alot it looks sweet though. Also i find that 20's or any larger wheel with low profile tires are not to much fun to drive on daily but again that is just me.
Do what you want it is your truck. It looks to be in great shape by the way.

you might want to try posting it in the photo shop section so you can get an idea of what it would look like.