Forum Discussion
Seattle_Lion
Sep 26, 2013Explorer
brulaz wrote:iJoeSass wrote:
I have more info, the gears are 3.55 and the trailer weighs 6450. Depending how many go pass weight is 600-800.
Payload? Should be on the door jamb. My guess is its about 1500#, maybe less. With 700# of people and gear, that leaves 800# left for trailer tongue weight.
Some people load up their truck just as they want to travel with it. All their gear and people and full tank of gas, then weigh it. Subtract that from the GVWR (on the door jamb), and that's what's left for the loaded trailer's tongue weight.
So, say you have 800# left for tongue weight. The hitch itself will weigh 50#. And you want a trailer with a minimum of 12% tongue weight, so your Max Loaded trailer weight would be 750/0.12 = 6250#. That's *loaded* with propane, batteries, beer, food, more beer and so on. NOT the "dry" weight.
Our current trailer weighs about 1000# more than its "dry" weight. I understand that's pretty typical. So really if we just had 800# left for tongue weight, I wouldn't look at anything over 6250-1000 = 5250# dry. Close to what GoldStalker says.
But, in fact, we have a truck with over 2000# payload and over 1000# left for tongue weight. So we're looking at trailers that max about 950#/0.12 = 7916# loaded, or about 6900# dry.
A WDH will take some tongue weight off the truck, but I don't include that in my estimates just to be conservative.
If that 6450# is the dry weight of the trailer, you'll be over 7000# for sure when loaded. That will definitely put you over the payload and GVWR limits of your vehicle.
We have about 600# truck load. Our tongue weight is ~800#. We have a WD hitch. The loaded trailer weighs ~7500 - 8000#. Even when pulling up a 6%+ grade, we have no trouble and on a 80 degree day, engine, oil, and transmission temp is normal, not a bit higher than when we drive with no trailer.
If tongue weight is so critical, why do car makers spec just max trailer weight? Also, fuel weight is not really a factor. A full tank (32 gal.) weighs 180 lbs. if we are cutting things that close, I would expect much more trouble. While I understand the calculations, I don't think we are so near an edge that we risk either damaging the truck or having an accident. There must be more to this.
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