|
|
09-05-2017, 03:29 PM
|
#29
|
Member
Outdoors RV Owners Club
Join Date: Aug 2017
Location: Torrance, Ca
Posts: 53
|
Quote:
Originally Posted by Araxis33
Looks like I'll be making another trip to the scales to make three passes. We're going to be heading up to the Kern River in a week fully loaded to stay a week so that'll be a good time to swing through the scales.
|
Okay....Went to the scale yesterday and got all three weights. Quite interesting. The weight distribution hitch is actually INCREASING my trailer axle weight by 60 pounds. Here are the numbers. Truck and trailer with weight distribution hooked up...
Tow Vehicle FA 4400, RA 5400, TT 8260.
Weight distribution unhooked...
TV FA 4300, RA 5580, TT 8200.
TV alone... FA4800, RA 3800.
This puts my TT total weight at 9500lb which unless my math is off would put my tongue weight at 1425lb which would be 15%. That is precisely what my tongue weight scale was showing.
__________________
2016 240RKSB
2015 CC SB 2500HD DURAMAX 4X4
1 NAGGER 2 BOXERS
|
|
|
|
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
09-05-2017, 03:37 PM
|
#30
|
Senior Member
Outdoors RV Owners Club
Join Date: Dec 2014
Location: Ontario Canada
Posts: 1,940
|
Quote:
Originally Posted by Araxis33
Okay....Went to the scale yesterday and got all three weights. Quite interesting. The weight distribution hitch is actually INCREASING my trailer axle weight by 60 pounds. Here are the numbers. Truck and trailer with weight distribution hooked up...
Tow Vehicle FA 4400, RA 5400, TT 8260.
Weight distribution unhooked...
TV FA 4300, RA 5580, TT 8200.
TV alone... FA4800, RA 3800.
This puts my TT total weight at 9500lb which unless my math is off would put my tongue weight at 1425lb which would be 15%. That is precisely what my tongue weight scale was showing.
|
Yep, that's how it's supposed to work.
Take weight off the truck's rear axle and move it to truck front axle and trailer axles. The amount taken off should approximately equal the amount added to the other axles.
__________________
2014 Timber Ridge 240RKS, 70K miles
690W Rooftop + 340W Portable Solar, 215Ah GC2s@24V
2016 Ram 2500 CTD 4x4 RegCab SLT, 10-11 mpgUS tow
|
|
|
09-05-2017, 04:14 PM
|
#31
|
Senior Member
Join Date: Dec 2012
Location: Oregon
Posts: 6,654
|
Unloaded rear axle 3800
Rear axle with TT hitched with NO WD 5580
5580-3800=1780 lbs.
|
|
|
09-05-2017, 06:28 PM
|
#32
|
Senior Member
Join Date: Jan 2017
Location: "Murvul", TN
Posts: 1,665
|
Quote:
Originally Posted by Cumminsfan
Unloaded rear axle 3800
Rear axle with TT hitched with NO WD 5580
5580-3800=1780 lbs.
|
1780 minus 340 = 1440!
Broken down.....RA 5580 - 5400 = 180
FA 4400 - 4300 = 100
TT 8260 - 8200 = 60
-------------------------------------------------------
Total = 340
1780 - 340 = 1440
__________________
2016 F350 Crew Cab Dually Diesel King Ranch 4x4
2018 Grand Design Momentum 394M Toy Hauler
Excessive Payload Capacity is a Wonderful Thing!
|
|
|
09-05-2017, 07:45 PM
|
#33
|
Senior Member
Outdoors RV Owners Club
Join Date: Dec 2014
Location: Ontario Canada
Posts: 1,940
|
Quote:
Originally Posted by Cumminsfan
Unloaded rear axle 3800
Rear axle with TT hitched with NO WD 5580
5580-3800=1780 lbs.
|
That 1780# on the rear axle includes both the TW and about 500# lifted off the front axle when no weight distribution.
So 1280# tongue weight.
__________________
2014 Timber Ridge 240RKS, 70K miles
690W Rooftop + 340W Portable Solar, 215Ah GC2s@24V
2016 Ram 2500 CTD 4x4 RegCab SLT, 10-11 mpgUS tow
|
|
|
09-05-2017, 11:28 PM
|
#34
|
Member
Outdoors RV Owners Club
Join Date: Aug 2017
Location: Torrance, Ca
Posts: 53
|
LOL...so my tongue weight is somewhere between 1280lb & 1780lb?
__________________
2016 240RKSB
2015 CC SB 2500HD DURAMAX 4X4
1 NAGGER 2 BOXERS
|
|
|
09-06-2017, 04:13 AM
|
#35
|
Senior Member
Join Date: Jan 2017
Location: "Murvul", TN
Posts: 1,665
|
Quote:
Originally Posted by Araxis33
LOL...so my tongue weight is somewhere between 1280lb & 1780lb?
|
No, your tongue weight with the WDH hooked up properly is right at 1440 lbs.
__________________
2016 F350 Crew Cab Dually Diesel King Ranch 4x4
2018 Grand Design Momentum 394M Toy Hauler
Excessive Payload Capacity is a Wonderful Thing!
|
|
|
09-06-2017, 04:51 AM
|
#36
|
Senior Member
Join Date: Jan 2017
Location: "Murvul", TN
Posts: 1,665
|
Quote:
Originally Posted by Araxis33
LOL...so my tongue weight is somewhere between 1280lb & 1780lb?
|
If you really want to know everything about your setup, click on the following link...
RV Safety|RV Towing Calculator|Tow Ratings|GCWR
After the page loads, look up at the Top of the page and click on the "For Setup Weight Safety Plan" link. Go through all four steps and you will have all the information about your truck and trailer that you will ever need. Fill out the worksheet completely though before you start the calculator, it will save you time.
__________________
2016 F350 Crew Cab Dually Diesel King Ranch 4x4
2018 Grand Design Momentum 394M Toy Hauler
Excessive Payload Capacity is a Wonderful Thing!
|
|
|
09-06-2017, 06:48 AM
|
#37
|
Senior Member
Outdoors RV Owners Club
Join Date: Dec 2014
Location: Ontario Canada
Posts: 1,940
|
Quote:
Originally Posted by xrated
No, your tongue weight with the WDH hooked up properly is right at 1440 lbs.
|
I think it's better to consider Tongue Weight a property of the trailer alone.
With weight distribution the TW gets redistributed to all three axles, including the trailer's, making things more complicated.
Prolly the simplest way to calculate TW is to look at the total truck weight.
Unhitched, the sum of the truck's axles is 8600#.
Hitch the trailer, with NO weight distribution, it rises to 9880#, a 1280# increase due to the trailer's TW.
Hitch with weight distribution and it drops to 9800#, as 80# has been moved back to the trailer's axles. Depending how you calculate that can be 60# or 80# as the numbers do not exactly add up. A 20# discrepancy in CAT scale numbers has been pretty typical in my experience.
__________________
2014 Timber Ridge 240RKS, 70K miles
690W Rooftop + 340W Portable Solar, 215Ah GC2s@24V
2016 Ram 2500 CTD 4x4 RegCab SLT, 10-11 mpgUS tow
|
|
|
09-06-2017, 07:33 AM
|
#38
|
Member
Outdoors RV Owners Club
Join Date: Aug 2017
Location: Torrance, Ca
Posts: 53
|
Quote:
Originally Posted by xrated
If you really want to know everything about your setup, click on the following link...
RV Safety|RV Towing Calculator|Tow Ratings|GCWR
After the page loads, look up at the Top of the page and click on the "For Setup Weight Safety Plan" link. Go through all four steps and you will have all the information about your truck and trailer that you will ever need. Fill out the worksheet completely though before you start the calculator, it will save you time.
|
Thanks x-rated. I'll check it out. Seems there is several opinions on determining the tongue weight with wide ranging results. There should be one industry wide accepted method for calculating proper numbers.
__________________
2016 240RKSB
2015 CC SB 2500HD DURAMAX 4X4
1 NAGGER 2 BOXERS
|
|
|
09-06-2017, 08:49 AM
|
#39
|
Senior Member
Join Date: Jul 2017
Posts: 2,582
|
Quote:
Originally Posted by brulaz
I think it's better to consider Tongue Weight a property of the trailer alone.
With weight distribution the TW gets redistributed to all three axles, including the trailer's, making things more complicated.
|
I'd have to agree with you. Without any kind of weight distribution in play the tongue weight should be the weight upon the hitch ball - period.
After the WDH is attached one can change (distribute) how much weight is upon the ball and axles in various ways including where the cargo in both the tow vehicle and trailer is placed, and the amount of lift applied with bar tension - all done without changing any weight in the trailer or tow vehicle. With so many variables as to how weight can be distributed, tongue weight with a WD hitch no longer becomes an absolute static value and thus less meaningful.
|
|
|
09-06-2017, 09:03 AM
|
#40
|
Senior Member
Join Date: Jan 2017
Location: "Murvul", TN
Posts: 1,665
|
I also stand corrected...TW = 1280
__________________
2016 F350 Crew Cab Dually Diesel King Ranch 4x4
2018 Grand Design Momentum 394M Toy Hauler
Excessive Payload Capacity is a Wonderful Thing!
|
|
|
09-06-2017, 09:04 AM
|
#41
|
Member
Outdoors RV Owners Club
Join Date: Aug 2017
Location: Torrance, Ca
Posts: 53
|
Quote:
Originally Posted by brulaz
That 1780# on the rear axle includes both the TW and about 500# lifted off the front axle when no weight distribution.
So 1280# tongue weight.
|
Ding! Ding! Ding!......brulaz is correct. According to the link that xrated sent when I do the calculations and add-in the numbers my tongue weight is 1280 pounds which is 13%. So my only issue however minor it may be is my distribution hitch weight bars are only rated up to 1,200 lb of tongue weight so I'm over by 80 pounds. But that should not make too big of a deal as the trailer seems to tow pretty solid.
|
|
|
09-07-2017, 05:51 AM
|
#42
|
Senior Member
Outdoors RV Owners Club
Join Date: Dec 2014
Location: Ontario Canada
Posts: 1,940
|
Back when we had the half-ton, I spent a lot of time at CAT scales, and hours working on a spreadsheet. Eventually we got a 3/4 ton and I haven't been to a CAT scale since.
Opening up the spreadsheet with the OP's data was just like old times.
And your 1280# is very close to what I was getting as well.
__________________
2014 Timber Ridge 240RKS, 70K miles
690W Rooftop + 340W Portable Solar, 215Ah GC2s@24V
2016 Ram 2500 CTD 4x4 RegCab SLT, 10-11 mpgUS tow
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|