I haven't put a lift kit in the 200 series (yet), but when I had the OME suspension (2" lift) put in the previous Prado, we had the option of 'variable load' rear coils. Up to 400kg (I think) - worked a treat. The Prado had a rear drawer system and with 40ltr engle and whatever else was in the rear when we were travelling towing the van (16' full offroad Supreme Getaway 190 kg ball weight) there was no sag at all. Unloaded the ride was quite comfortable and not rough. Didn't need a WDH for towing.