Thread Tools Display Modes
Old 03-29-2015, 07:45 PM   #11
Senior Member
BBBlue's Avatar
Join Date: Jan 2013
Location: Bassett, Va
Posts: 304
Our hitch weight went from 2,255 lbs dry (published) to 3,220 lbs loaded (965 lbs increase).

Unit total weight went from 12,765 lbs dry weight (as per unit sticker) to 15,120 lbs fully loaded for our current trip (empty grey, black, and fresh tanks). (2,355 lbs increase).

2013 Sanibel 3500
2013 Ram Truck 3500 Laramie Longhorn Dually

2017 Days camping-190
2018 Days camping-66
BBBlue is offline   Reply With Quote
Old 03-29-2015, 08:20 PM   #12
Fulltime family RVer
ependydad's Avatar
Join Date: Nov 2011
Posts: 16,643
Originally Posted by Grumppy View Post
The fifth wheel dealer says not that much will be added to the king pin weight and that the truck is fine. But we are cautious on what we have been told. Everyone wants to make a sale.

The king pin weight absolutely will go up. Your main storage is at the front of the camper in that glorious-sized basement.

For non-you haulers, you can usually estimate what a loaded pin weight will be by taking the dry hitch weight and dividing it by the dry loaded weight. This will give you the hitch weight percentage. This is generally somewhere between 17% and 25%.

Then you estimate how much crap you'll load into the water - necessities like propane, batteries, clothes, kitchen stuff, and optionals like water (fresh, gray, and black). An easy number is to say 1,500 conservative, you'll surprise yourself if you weigh the camper down the road. More if you'll go on longer treks. Add that number to the dry hitch weight to come up with a "wet"/loaded weight.

The last trick to all of this. That dry percentage that we calculated first. For example, say 19%... it usually increases by 1-3% (and in rare cases, 4-5%). This is again due to that glorious basement carrying a lot of weight.

Now, multiple that loaded weight by the adjusted pin weight percentage. This will give you a ballpark number of what your pin weight will be.

I have an online calculator that does this all for you:
Calculator to estimate pin weights from dry weights

The truck needs to carry this weight as well as you, the spouse, any kids/fur-kids, and anything else in/on the truck (fancy rolltop cover you added, fifth wheel hitch, firewood, extra fuel, ect).

2012 Ram 3500 DRW/crew cab/long bed/4x4/4.10 gears pulling a 2017 Spartan 1245 by Prime Time
Checkout my site for RVing tips, tricks, and info | My family and I have fulltimed since June 2015
ependydad is online now   Reply With Quote
Old 03-29-2015, 08:48 PM   #13
Junior Member
Join Date: Mar 2015
Posts: 6
Thanks for all the input. Having a travel trailer before with the different payload calculations, it opens your eyes to what sales people tell you!

Grumppy is offline   Reply With Quote

hitch, weight

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 12:23 PM.