5th Wheel Height?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Gazoo, Nov 3, 2007.

  1. Gazoo

    Gazoo Resident Mental Patient

    Apr 14, 2007
    Anyone know the average height of a 5th wheel? I measured 47 inches and wanna know if I am close.
  2. Pur48Ted

    Pur48Ted Road Train Member

    Jun 14, 2006
    Grand Rapids, MI
    It depends on the height of the little fat girls...
  3. tomo1

    tomo1 Bobtail Member

    Nov 3, 2007
    47" is very common
    5th wheel height is made up from tire diameter, suspension height, frame measurement and 5th wheel stand measurement
  4. Mr_Dude

    Mr_Dude Engineer Of Doom

    Aug 18, 2007
    Lowell, Arkansas
    47-48 is about average. Most places where, say, an O/O would lease on to where they pull boxes require 5th wheels no higher than 48, otherwise you get that Uphill Box Syndrome going down the road.

    Some trucks now have adjustable 5th wheels, where one can adjust to be Higher for certain loads (i believe Tankers, Flatbeds, and LowBoys are higher) and then lower for others (Low Clearance Specialty Boxes such as NA Van Lines Boxes, Automotive Racks, etc.)
  5. Gazoo

    Gazoo Resident Mental Patient

    Apr 14, 2007
    Well, Landstar needed the height on my Lease paperwork. I leveled it, put a flat stick on top and measured it to 47".

    Thanks for the input guys.
  6. Burky

    Burky Road Train Member

    47" is the standard height that the majority of trailers use. There are some oddball ones out there, and your choice of tires can affect it, but that is the common number. they are mainly concerned becaue of locations like the two bridge tunnels in Chesapeake Va and othe rplaces where there is not much room to spares. A friend of mine used to pick up extra money pulling through trailers that would not meet the bridge height through there.
    KB3MMX Thanks this.
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