I built my own for less than $100. Put it in the '97. Not a turn-over ball mind you, but it didn't stick above the flatbed floor anyhow. IIRC, B&W does have a turn-over ball that can be welded into a flatbed. Don't see why you couldn't make your own mount for it out of good scrap steel.
The '99 came with g/n and DMI hitches in place when I bought it.
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