sechsgang, I appreciate your input. This is my third camper so I'm not a complete newb to towing. You are right that the payload and the tounge rating on the Tacoma is the acheles heel for towing a TT near the tow rating. Not to mention the shorter wheelbase. Is there a larger truck in my future? Absolutely when the lease on this one is up. For now I am comfortable with how everything handled and owe that to the WD Hitch. I was already aware that we wouldn't have much payload left to put anything in the bed and I'm OK with that.
A trip to the scales is the only way to be sure I'm within ratings. It is on my to do list.
Here's how I see it even before the mysteries of how the hitch distributes the weight.
Payload of the truck is 1395
subtract 800 (a guestemate) on the tounge is 595
subtract my family 580 leaves a whopping 15 pounds.
Tight yes. Now add back in the mysterious action of the WDH. Using your guestemate based on the photo (133lbs) and I'm 148 pounds from going over my payload. Again tounge rating is the killer. Using our made up numbers, 800 minus the transfered weight to the trailer, 133 equals 667 lbs. Thats 17 lbs over and I can live with that.
As far as gcvwr I'm over by 190 lbs IF the TT is loaded to it's max of 5940 lbs. I'd be suprised if we have more than 500 lbs of stuff in there in travel mode. Some say 1000 lbs of stuff is a good average for what people put in a TT. So lets take the larger average 1000 lbs and add it to the delivered weight of the TT, 4160 and we get 5160.
minus 5160 and the truck's maxed out 5350 gvwr
leaves me 290 lbs under.
Bottom line... I appreciate your input and know you are trying to help. We knew going into this that I am close, but confident I am under the ratings.
The only way to tell will be to weigh it.