[cashforclunkers]

You will need different front wheel hubs, since they don't use bolt on adapters like the newer trucks. I actually have a set of SRW hubs i'd be willing to trade for DRW. On a dana 60, if you end up going through with it.

I can't remember if the brake rotors are different. They might be.

On the rear, the whole axle is a different width. Wider to give room for the inner wheel. Usually you can get away with just bolting on single wheels to your dually axle, I have run 2" spacers in the front to even it out.

Another option is to run 16.5" military beadlock wheels on your dually, very high offset and will make a drw the proper width with singles. Can be bought real reasonable. But limits your tire options and you would have to like the look.

Hope this helps.