skipnchar wrote:
IF your truck has a maximum tongue weight number assigned to it it would be without any weight distribution system attached. If you try to figure it WITH the WD in play then you could keep adding spring pressure and pretty much carry ANY sized tongue (but the rear wheels would eventually be clear off of the ground. Their concern is probably NOT the weight on wheels but axles, frame and the receiver itself. The MOST important thing about tongue weight is to remain below the axle ratings AND the GVWR of the truck.
Interesting post. In your signature you claim:
"2011 F-150 HD Ecoboost 3.5 V6. 2550 payload, 17,100 GCVWR"
We had a 2013 F150 same engine with a crew cab. Our payload was 1250 lbs. Seems like a big difference. In fact, with our 6000 ULW ultralight, figuring 1,000lbs of load, we had a tongue weight of 900 lbs, which meant we exceeded GVWR when the two of us and some stuff was in the truck. We got the load rating from Ford and the sticker. How did you come up with over 1,000 lbs more capacity? Ford hasn't changed the truck since the 2011 model.