1. Douglas Owen
    May 26, 2018 @ 6:49 AM

    I stumbled onto your website and I am thrilled about the ideas, the content, the write ups, the videos — in short, this is the website I have been looking for — for a long time. Technical enough to provoke thought and educational and practical enough to see it all come together. You folks are Masters!
    I am currently building a goose neck trailer — 26.5′ flat and a 4.5′ dovetail. I am using 12″ X 19# I-beams (some call them wide flange) — flange surfaces are all parallel and 4″ wide. I have been looking for sometime for intelligent information on using Torsion axles for this project. I have three 7,000# torsion axles with electric brakes that I will be using. I may just make it tandem but I would like the option to make it a triaxle. I am very interested in your plans for the “walking beam” you have created to make a tandem using torsion axles — brilliant thinking outside the box!


    • Eldon Goates
      May 26, 2018 @ 4:43 PM

      Thanks for the compliment about the site. We want it to be more than just a place for plans.

      With a trailer that length, triple sounds great, but I’m not sure how to do triple with torsions in a way that won’t overload one (or two) like going over a speed bump or into a parking lot. In doing the tandem with torsions I toyed with a combo of springs coupled with torsions. Read the Hybrid Mechanisms Section on this page and see if that sparks something. Good luck with your project!


  2. Max L Harmon Sr
    September 25, 2018 @ 3:21 PM

    Hi This is Max in Missouri and I would like to build your Walking Beam for my Tandem Torsion Axles that I’m planning to put on my Pontoon Trailer. I have the Four wheels Tires and the new Ultra Pac Hubs from Northern Tool. I ordered the Torsion Axles for them also and still waiting on shipment. Can you Sell me the plans for your Beam? I watched the Videos and am impressed with the results. I’m an old retired Shade Tree Machinist and I can Weld and make anything I put my mind to. Please let me know. I can Download anything you send.

    Thanks Max


    • The Mechanic
      September 26, 2018 @ 5:58 AM

      Thank you for writing. I have a few requests, so it’s on the list. However, requests vary in both size and capacity, which means I need to do several sets of plans to cover it. They are coming. I’m sorry, I don’t have anything for you at the moment.


  3. Max L Harmon Sr
    September 26, 2018 @ 9:38 AM

    Thanks for your quick answer.

    I’m going to bolt the torsion axles on as soon as I get them. I plan on building your walking
    Beam this winter. Do you think that a 2″ hollow Shaft, similar to a large Wrist Pin on a Cat Engine piston, would be stronger than your 1″ bolt, for the Beam to pivot? Just my 2 cents. lol

    Thanks Max


  4. Tom
    January 20, 2019 @ 10:04 PM

    Hey guys,

    Cool idea! Currently looking for a suspension system for a horse trailer that improves the ride, but is still reliable in a tandem configuration.

    One question I had, is why can’t one of the rubber torsion axles be reversed? This would make the assembly shorter and simpler as well as remove the asymmetry issue.

    Also could you use the half width rubber torsion assemblies which would make this completely independent, and remove the need for rubber bushes? It would need to be heavier but may make for a better ride.


    • The Mechanic
      January 21, 2019 @ 5:33 PM

      Thanks for the note and questions. You have a good point about partial width torsions and yes, that could be designed. However, the Timbren Silent Ride Tandem does it one better. It is heavier, more expensive, and taller, but it’s cool. Goals of our walking beam suspension include low, lean, reasonable cost, and practical for the DIY builder. Alignment, machining and setup with partial axles on a walking beam preclude the simple construction elegance we want for most DIY.

      On turning the axle around, yes, sort of. Trailing arms are very stable and forgiving. Leading arms, not as much. It can solve some things, but it will change the towing dynamics.


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