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  1. #21
    Join Date
    Jun 2020
    Location
    Reno, NV
    Posts
    741

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    I think the difference in tongue design between heavy load trailers and boat trailers would make properly installing a WDH problematic. The triangle of the tongue anchors the pitman arms, whereas boat trailers do not have that triangle. The angle between pitman arms is a necessary component of the system as it provides flex and rigidity, as well as steering angle.

    Add to the problem the swing-tongue weak point are the hinge and keeper pin eyes. I think a WDH set up would put too much strain on those components.
    2020 SA 450 Wife calls it White Cloud. Said it makes her feel "Classy"
    2017 Sanger V215sx. We call it Viagra because it's the little blue pill that gets everyone up (Sold)

  2. #22
    Join Date
    Aug 2019
    Posts
    170

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    I do get the concern Boatmate has with surge brakes but I have not had a problem with that on multiple trailers with surge brakes. Electric over hydraulic solves that problem anyway. They have WD adapters for straight tongue trailers.

    2005 Tige 22v

  3. #23
    Join Date
    May 2018
    Posts
    4,920

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    Perhaps air springs help keep weight on the front axle.


    Sent from my iPhone using Tapatalk
    2021 Supra SA 400
    2018 Supra SA 400 (SOLD)
    Michigan

  4. #24
    Join Date
    Oct 2020
    Posts
    17

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    Quote Originally Posted by larry_arizona View Post


    Also I see some of the modern WDH set ups allow for backing up. That was not always an option.


    Sent from my iPhone using Tapatalk
    If the only reason not to have a WDH is the surge brakes then the EOH brake system should eliminate that issue. I have pulled several enclosed trailers and flat bed trailers with 10K+ loads with WDH and never had an issue with backing up. On the enclosed trailer you did have to disengage the sway control to backup. Did not have sway control on the flat bed trailer. Was not planning on adding a sway bar to the boat trailer.

  5. #25
    Join Date
    Oct 2020
    Posts
    17

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    Quote Originally Posted by 2in2out View Post
    I think the difference in tongue design between heavy load trailers and boat trailers would make properly installing a WDH problematic. The triangle of the tongue anchors the pitman arms, whereas boat trailers do not have that triangle. The angle between pitman arms is a necessary component of the system as it provides flex and rigidity, as well as steering angle.

    Add to the problem the swing-tongue weak point are the hinge and keeper pin eyes. I think a WDH set up would put too much strain on those components.
    I was not going to get the swing away option on the trialer I do not need it to make it fit in my storage building. Was planning on the EoH brake system. I have more experience with electric brakes than surge brakes.

  6. #26
    Join Date
    May 2018
    Posts
    4,920

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    EOH is new to boatmate as an available option for Supra/Moomba, I think it started 2020 or 2021


    Sent from my iPhone using Tapatalk
    2021 Supra SA 400
    2018 Supra SA 400 (SOLD)
    Michigan

  7. #27
    Join Date
    Jun 2020
    Location
    Reno, NV
    Posts
    741

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    Quote Originally Posted by 1967-mustang View Post
    I was not going to get the swing away option on the trialer I do not need it to make it fit in my storage building. Was planning on the EoH brake system. I have more experience with electric brakes than surge brakes.
    My next boat trailer will have EOH brakes. I’ve had hell putting backing my boat into my driveway and at one certain ramp because they are both uphill, and the surge brakes engage. I have a lockout tool, but it only stays on about half the time. I’d much rather have EOH with the grades I pull. Similar to what Sandm describes.
    2020 SA 450 Wife calls it White Cloud. Said it makes her feel "Classy"
    2017 Sanger V215sx. We call it Viagra because it's the little blue pill that gets everyone up (Sold)

  8. #28
    Join Date
    Dec 2015
    Location
    north texas
    Posts
    1,164

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    Quote Originally Posted by larry_arizona View Post
    Perhaps air springs help keep weight on the front axle.


    Sent from my iPhone using Tapatalk
    I think that would be true making front brakes more effective. Also better for night driving.

    I had a bicyclist whip out in front of me this past season. I was running about 40mph. Was really impressed with how quickly everything stopped. I have a 1/2 ton with air bags pulling an SA. Scared the hell out of me. Bicyclist never looked up or heard 8 tires locked up. Guess music was good.


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    2017 Supra SA

  9. #29
    Join Date
    Apr 2020
    Location
    Prince George Canada
    Posts
    315

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    Quote Originally Posted by 2in2out View Post
    My next boat trailer will have EOH brakes. I’ve had hell putting backing my boat into my driveway and at one certain ramp because they are both uphill, and the surge brakes engage. I have a lockout tool, but it only stays on about half the time. I’d much rather have EOH with the grades I pull. Similar to what Sandm describes.
    There may be a problem with your tow vehicle wiring to the hitch. The surge brakes should disengage when your reverse lights come on. Backing up hills and over speed bumps/ curbs etc. should be no problem.
    2020 Moomba Mojo
    2008 Mastercraft Prostar 197 40th Anniversary
    Owner Ness Lake Watersports
    Wakemakers “Exact Fit” Bags + Lead = 4,700 ballast
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  10. #30
    Join Date
    Nov 2010
    Location
    Katy, TX
    Posts
    6,368

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    Coming from someone who pulls with an expedition and has done the drive from Missouri to Texas and back before I think you will be fine. Granted my mojo is not has heavy as a makai, we are at 6940 lbs with 560 lb tongue weight loaded for the lake and were more than that on out way to missouri due to all the luggage for the trip being in the boat. We also had 6 people in the expedition. Main thing is just watch your speed and give yourself plenty of space for stopping. You may want to look into sumo springs for the expedition to help with the load. And like it has been mentioned, if you want a WDH then they are available for pole tongue trailers.

    In regards to air bags, the weight transferred back to the front axle via air bags i would think it negligible. You're still using the rear axle a fulcrum for all the weight, air bags do not change that like a WDH does.

    I have a 2018 F150 that has the same power train as your expedition so one thing I do recommend is locking out 9th and 10th gear while towing. Maybe 8th too depending on hills and such.
    David

    2017 Moomba Mojo Max Surf Edition, 2 Pair Wetsounds Rev10s powered by an SD2, 6 pair Wetsounds XS650M and Wetsounds XS12 powered by SD6 all controlled by a WS420. 2 Lumitec SeaBlaze X2 Spectrum underwater lights

    SOLD***2008 Mobius LSV, Gravity III , Wake Plate, Z5, Exile SX65c's, Exile XM9s, Exile XI12D, Exile Javelin, Exile 30.2***SOLD

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