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09-05-2021, 01:47 PM
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#1
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Junior Member
Join Date: Jan 2016
Posts: 28
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Weight distribution
Weight distribution hitch. Top of rear wheel well with no load = 42 inches. Full load w/o bars = 40 inches. Full load with bars 5th link = 41 inches. I've heard not to go beyond 5 links. Any truth to this? Want to get back to 42 inches. TIA.
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09-05-2021, 02:51 PM
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#2
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: Jun 2011
Location: Texas
Posts: 6,427
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What brand weight dist hitch do you have?
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2022 London Aire 4551 * 2022 GD Imagine 2800BH * 2021 RAM 3500 DRW * 2020 Wrangler
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Kindness Matters
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09-05-2021, 06:19 PM
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#3
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Senior Member
Join Date: Dec 2019
Posts: 797
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You should have some rear squat, your goal isn't to remove all of it. If you remove all the rear squat that implies you transferred to much weight to the front axle and trailer axle and your rear axle may not be carrying enough load.
Double check the instructions for your specific WDH. Front wheel well height is usually the main target for WDH setups.
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09-05-2021, 06:36 PM
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#4
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Junior Member
Join Date: Jan 2016
Posts: 28
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EAZ Lift 1000
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09-06-2021, 05:05 AM
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#5
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Senior Member
Join Date: Dec 2006
Location: Foxboro Ma.
Posts: 1,096
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I have always measured both front and back wheels wells . Get the front close to where it was and the back will have some sag. If you take that much weight off the back with the bars (back to normal ride height) it most likely will make for a rough ride and poor traction when you pull away from a traffic light in the rain.
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2015 42' Redwood RL38 Morryde IS , disk brakes, 1920W of solar with Victron everything,5 Battleborn, 2024 GMC DRW 3500HD ,60 gallons of fuel in the bed,Hensley BD5 air ride hitch.
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09-06-2021, 05:32 AM
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#6
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Senior Member
Join Date: Jul 2005
Posts: 5,996
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The whole entire point of having a WDH is to maintain the aspect of the tow vehicle in relation to the road. This is done by redistributing some of the weight forward onto the front wheels. It helps to maintain tire aspect and to keep headlights from shining over the horizon.
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TandW
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09-06-2021, 06:36 AM
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#7
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Registered User
Join Date: Apr 2020
Posts: 1,603
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Quote:
Originally Posted by kiltronix
Weight distribution hitch. Top of rear wheel well with no load = 42 inches. Full load w/o bars = 40 inches. Full load with bars 5th link = 41 inches. I've heard not to go beyond 5 links. Any truth to this? Want to get back to 42 inches. TIA.
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There is truth to the recommendation of not putting too much load back onto the front axle as this will cause your tow vehicle to oversteer. The parameter that you should go by is FALR (front axle load restoration). Look into your tow vehicle owners manual. They will probably tell you to limit FALR to 50% or in some vehicles 25%.
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09-06-2021, 07:34 AM
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#8
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Moderator Emeritus
Ford Super Duty Owner
Join Date: Aug 2000
Location: Bryan, TX when not traveling.
Posts: 22,948
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What is the fender height on the front doing as you added the trailer and bars? You need to measure BOTH ends of the tow vehicle.
If you are not getting enough weight transfer, tilt the hitch head back toward the trailer and then remeasure.
You want the tow vehicle to squat about the same amount on the front and the rear.
Ken
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Amateur Radio Operator (KE5DFR)|No Longer Full-Time! - 2023 Cougar 22MLS toted by 2022 F150, 3.5L EcoBoost Tow Max FX4 Lariat Travel with one Standard Schnauzer and one small Timneh African Gray Parrot, retired mechanical engineer
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09-06-2021, 08:51 AM
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#9
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Senior Member
Join Date: Dec 2012
Location: Oregon
Posts: 6,657
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The rears not as important as the front. Set the front and deal with the rear afterwards. Rear sag is normal. Thats why the rear is higher than the front to begin with.
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09-06-2021, 11:32 AM
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#10
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Senior Member
Join Date: Nov 2018
Location: Beaver Dam, Wisconsin
Posts: 5,154
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There are lots of ways at looking at adjusting WDH's. I would trust the WDH manufactures instructions about whether to use all links or not. If someone else says not to, I would want to know what the evidence is. "Just think about it. It makes perfect sense." does not cut it with me.
Follow instructions on how to set up the WDH. Once that has been done check truck's towing instructions.
I agree with measuring the front height change as well. Load the truck like you will be when towing. Include passengers and equipment.
Front should usually not drop lower than this starting height with trailer hooked up.
Add the trailer without weight bars. Remeasure front. Front will probably rise. You said rear drops 2 inches.
Add weight bars. Rear will raise. Front will drop. You said rear raises 1 inch at 4 links. Front will probably drop half of the measured rise. If it drops below starting height, you have gone too far.
Getting it close to starting height means you have restored front load to what is was before hitching the trailer. This is important for steering performance and front wheel drive.
Don't raise the rear more than starting height. Some drop usually works well for high speed road stability and head light aiming.
Otherwise, just try it and see!
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Paul Bristol
Kodiak Cub 176RD
Nissan Pathfinder 2015
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09-06-2021, 01:44 PM
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#11
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Senior Member
Join Date: Feb 2015
Location: St. George, UT
Posts: 1,950
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Could be wrong, but maybe he has a lift kit, that has leveled the truck. Understand he now wants to keep that same look while towing.
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Owners of a 2018 Lance 1995
St.George, UT
Former 02 Intrigue by Country Coach
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09-07-2021, 08:45 PM
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#12
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Junior Member
Join Date: Jan 2016
Posts: 28
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Thank you all for your insights. I was out of town with no cell. It is 5th link. No lift kit. I will experiment with front measure as I've not heard this before. Makes sense. Be blessed.
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09-08-2021, 08:21 AM
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#13
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Senior Member
Outdoors RV Owners Club
Join Date: Apr 2018
Location: Seattle
Posts: 469
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Weigh it! Measuring fender heights is a decent approximation, but I’m a big fan of using the three pass method and figuring out exactly what your WDH is and is not doing. You can tweak it ‘til the cows come home, but that won’t fix undersized spring bars. And if you’ve already added a lot of crap in the truck bed which also took weight off the front axle, transferring a little more-than-usual weight back to the front axle isn’t going to hurt anything…
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09-08-2021, 09:52 AM
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#14
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Senior Member
Join Date: Dec 2012
Location: Oregon
Posts: 6,657
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Quote:
Originally Posted by shane_the_ee
Weigh it! Measuring fender heights is a decent approximation, but I’m a big fan of using the three pass method and figuring out exactly what your WDH is and is not doing. You can tweak it ‘til the cows come home, but that won’t fix undersized spring bars. And if you’ve already added a lot of crap in the truck bed which also took weight off the front axle, transferring a little more-than-usual weight back to the front axle isn’t going to hurt anything…
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All auto MFG suggest measuring, why would that be bad?
If an auto mfg wants the front returned to 50% of OEM height why would you need to weigh the front?
You end up in the same place without driving to a pay scale.
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