[cal30_sniper]

I'm running Hummer H2 rims on my 3/4 ton, and they fit perfect. It's a 17x8.5" rim, which will give you better highway manners with a larger tire. I'm running 265/70/r17 tires which is a common size for a lot of the 3/4 ton trucks from the last two decades. Those are a 32" tire, but there are all sorts of larger sizes available in 17". Backspacing is right on, and the hub bore is exactly the same as a 3/4 ton squarebody, so you maintain a hubcentric fit. The load rating of the rims are also much higher than anything I've seen from the aftermarket, if you care about moving heavy things. I picked the set up off of craigslist, including the spare rim, for $250 a few years ago. Once you ditch the idiotic fake air system center caps, you can use externally threaded lug nuts and any of the 2000s 8-lug Chevy centercaps from aluminum rims will bolt right in. You can also use centercaps from steel rims, but they need to be trimmed down to a smaller diameter to fit inside the rim. That's what I did on mine, because it was cheap, and the trimmed area is hidden in the center of the rim anyways.

I'm on a work machine right now, but I can upload photos later on from home if you're interested.

PS, if you're set on 16" rims, 16x7" 8-lug aluminum rims from newer 3/4 tons are all over craigslist. You should be able to find a set cheaper than a new set of steelies will run you, and IMO, a factory rim is almost always a better option.