It's not a 2WD or 4WD thing, the clutch is the issue. You've got the same engine so you could haul the same weight but you'd do your clutch in sooner then normal. So if you need to, you could pull the extra 1500lbs just be gentle with the clutch and don't make a habit of it unless your into installing new clutches. The lack of power in the X is a whole 'nother matter!