Anyone know how much weight the tailgate on a '03 2500 4WD can take? I am about to buy a motorcycle loading ramp that attaches to edge of the tailgate. The ramp itself will weigh around 100 lbs, and will be loading about 1000 lbs worth of bike and rider. I don't relish the idea of getting half way up the ramp only to have the tailgate give way or bend.