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qhumberd
Moderator

Type of suspension

Rerail
Rerail Member Posts: 22
in Trailer & Towing
Folks, 
I would like to know the type of suspension on the T@B 320. I can see that it appears to be a torsion bar type as per my previous trailer. When I purchased the trailer, the sales person did not know. He said it was torsion bar but did know the brand. I am assuming something like a Dexter system
Thanks,
Keith Stamper
Port Colborne,
Ont Canada
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Comments

  • MuttonChops
    MuttonChops Member Posts: 1,935
    Yes,  Dexter Torflex. ( at least since 2016 )

    For T@B 320 S two axle pitches are available; standard and 'boondock models' which adds some additional ground clearance.
    '18 320 S,  pitched axle, 3020HE; PNW based
    TV: '17 Colorado V6 Z71 4x4, Tow Package, GM Brake Controller
    TV: '25 Canyon AT4
    Adventures:  58   Nights:  405  Towing Miles 50,180
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  • Luckyj
    Luckyj Member Posts: 286
    But just to make it clear, they are not torsion bars.

    see it as a sqiare tube with 4 rubbers piece in each corners, and a smaller metal shaft press tight in the middle.  The resistance from the 4 piece of rubber is what is acting as the suspension when there is movement.

    will try to find a video.
    2017 T@G Max Outback "Le Refuge"
    TV 2005 jeep TJ unlimited
    and/or 2005 Nissan X-Trail 4wd
    Alaskan Malamuthe on board!

    Les Escoumins and Petite-Riviere-St-Francois QC
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  • gande
    gande Member Posts: 103
    Does the 400 use the same type of suspension? 
    gande

    2018 T@b 400
    2019 Ram 1500 crew cab / 5.7 V8
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  • rkj__
    rkj__ Member Posts: 641
    Luckyj said:
    A vid explains it way better than I can.

    Thanks for posting the informative video.  I did not know how exactly the system worked. 

    I've never found the T@b 320's suspension particularly compliant, but I don't really have much of a basis for comparison. 
    2016 T@b 320 CS-S - 2018 GMC Sierra - St. Catharines, Ontario, Canada
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  • N7SHG_Ham
    N7SHG_Ham Member Posts: 1,261
    @gande yes, same type of axle, but might be a higher weight capacity.
    2019 T@B 400 Boondock Lite
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  • atlasb
    atlasb Member Posts: 584
    Do not jack or let anyone jack on the axle tube either!  could damage it.
    2018 T@B 400, 2017 Nissan Titan Crew cab
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  • ScottG
    ScottG Administrator Posts: 5,655
    edited May 2019
    atlasb said:
    Do not jack or let anyone jack on the axle tube either!  could damage it.
    And now that I know how the axle works I have a better understanding of why!
    2015 T@B Max S (320)
    2015 Nissan Frontier SV V6 4x4
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  • WilliamA
    WilliamA Member Posts: 154
    Suspension compliance (ride) is not so much a function of its type, whether leaf, coil, air or torsion, but it's effective travel.  The Dexter axle IMHO is a good, simple and robust unit. It is NOT, however, particularly compliant. I'd venture a guess that it's got around 3 useful inches of travel. Suspension is, by nature, a sorry compromise. Any more travel and it's either too tall or dragging hard parts. Any less travel and it's a buckboard.
    A pint never holds more
    Than a pint...

    WilliamA 
    2021 Jeep Cherokee Trailhawk
    2017 T@G XL
    Can generally be found around west-central Wisconsin.  
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  • db_cooper
    db_cooper Member Posts: 748
    We've found the T@b to bounce less since adding the hitch tightener.  We run 35 psi in the tires and maybe a few thousand miles have softened it up a bit. It sure seems better than the first year we towed it.
    2015 Max S Outback | 2010 Xterra  -- Retired
    2022 Ford F350 Tremor |  2022 Cirrus 620



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  • MuttonChops
    MuttonChops Member Posts: 1,935
    db_cooper said:
    . . .  run 35 psi in the tires and maybe a few thousand miles have softened it up a bit.
    For myself 35 psi is too near the tires max load being equal to 50% of T@B GVW.
    I'm running 48 psi and feel it's overkill for the T@B and may reduce it a bit
    . . . but no way would I go to 35 psi . . .
    our actual tire sizes not on table - - you get the idea
    '18 320 S,  pitched axle, 3020HE; PNW based
    TV: '17 Colorado V6 Z71 4x4, Tow Package, GM Brake Controller
    TV: '25 Canyon AT4
    Adventures:  58   Nights:  405  Towing Miles 50,180
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  • db_cooper
    db_cooper Member Posts: 748
    For the general grabber LT's on the outback I'm  happy at 35 psi. I've run 70 mph for 3 hours in 80 degree temps, and the tires were barely above ambient.  I figure bouncing tires at 50 psi creates a different stress on the tires and trailer, I did it the first couple trips and thought towing was miserable.

    The key is monitoring and paying attention. I won't leave the driveway a pound below 35.  I also check tires and hubs at every stop.  
    2015 Max S Outback | 2010 Xterra  -- Retired
    2022 Ford F350 Tremor |  2022 Cirrus 620



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  • Rerail
    Rerail Member Posts: 22
    Thanks to all who responded. I was pretty sure that the suspension was the Dexter type or Torflex. I had this exact same syuspension on the Airstream and it works really well. Yes, never jack the trailer up on the suspension. That will damage the torque arm.
    I appreciate the feedback.

    Keith Stamper
    Port Colborne,
    Ont, Canada
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  • Babs
    Babs Member Posts: 28
    The videos appear to be a reliable source of information.  How can people view them since they are marked "private"?  Thanks.
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  • pthomas745
    pthomas745 Administrator, Moderator Posts: 4,527
    @Babs Here is the video from a different link.


    2017 Outback
    Towed by 2014 Touareg TDi
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