The problem with 16" drop center rims is that they probably won't fit over the brake drums. A 16" single piece spoke type "wagon wheel" is sold for trailers that has the right lug bolt pattern, but be sure to check for brake drum clearance before committing to buy them. You might try to find a 17.5" tubeless tire rim with an 8-bolt center. It will have tires that have the same overall height as a 16" tube type tire. The downside is that 17.5" tires are pretty spendy.

There is absolutely nothing dangerous about running multi-piece rims as long as they're not rusty or damaged. The only dangerous ones out there are the Firestone RH-5 rims that split in the middle, and those were never used on 3/4 ton vehicles, to my knowledge!
Jerry


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