Mike,
Over here in Australia, we imported the Suburban before the Explorer. When GMH converted the Sub, they left the column shifter where it was, but because the column is now on the RHS of the vehicle, the gear lever stuck out towards the open door, which meant it got in the way when entering the vehicle and was also a safety hazard.
So when Ford got the Ex a few years later, they decided against the straight conversion I guess, and went for a whole new layout. Takes up a lot more room though, with the centre gear console and also a hand operated brake.