Originally Posted by JoeR
How do you determine hitch weight from these numbers? I was in the truck for each weight.
Your tongue weight is 1100 lbs. Truck with trailer without spring bars in place (7620 lbs.) minus the truck solo (6520 lbs.).
You should have dropped the passenger off before doing your weigh-in with the 1000 lb. bars.
That extra weight messes up the numbers while figuring out the weight distributing ratios, but here goes a calculated guess.
Since the trailer axle weights didn't change between the 750 lb. bars and the 1000 lb. bars, that indicates that no more weight is being shifted back to the trailer, also indicating that you would be getting the same weight distributing ratio on the truck. Your 200 lb. passenger is adding 120 lbs. to the front truck axle, and 80 lbs. to the rear truck axle.....about right since the front seat is closer to the front axle than the rear on many super and crew cab pickups.
Using those speculations, your truck front axle without a trailer should come in at 3780 lbs. with you and your passenger, with the rear axle at 2940 lbs. With the 1000 lb. spring bars, you are still missing 580 lbs. from the steer axle. You need to get a lot more weight distributed to the steer axle to come close to the unloaded front truck axle.
When reweighing, keep everything as near as possible with passenger and cargo load and placement with all of the weights, including reweighing without the trailer hooked up.