This may help. I did weigh a loaded 2006 T2553 for tongue weight, Scroll down the list
That said, many of the manual hand crank jacks are 2,000# rated and is pretty standard. You really want the jack to have lots more power then the loaded tongue weight. When you hitch up the WD hitch, you need to lift the back of the truck some which is more then the loaded tongue weight.
Hope this helps
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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