53 Foot Trailers

Discussion in 'Questions To Truckers From The General Public' started by Z99, Mar 13, 2017.

  1. Z99

    Z99 Bobtail Member

    6
    0
    Mar 13, 2017
    0
    I am a retired driver (1993) and for years have noticed the 53 footers. Well I drove the first 53 footers that came out in the late ‘70’s but they had 10 foot overhang both ends. What I see now all the overhang is off the trailer. Nuthin on the tractor. So how do you balance them up and get your axles legal? Have the weight laws changed? It was 34,000 each end at that time (California).

    It was fun driving them. Other drivers were always on the 2-way asking about them. Right turns were really fun with that nose lobbing way across the oncoming traffic. :) Some people actually laid down across the front seat in their cars. Haven’t even been in a tractor since July 1 st ‘93.
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. lovesthedrive

    lovesthedrive R.I.P.

    15,953
    54,484
    Nov 11, 2008
    Sorrento Maine
    0
    The trailer should be thought of like a seesaw. Depending on where you put the tandems you can shift the weight by taking a nose heavy load off of the tractor by sliding the axles forward. It is part of the headache of needing to slide the tandems. Also the fifth wheel plate can be slid to alter how much nose weight will alter the weight to the tractor.

    The weight is still 12,000 (steers) 34000 (drives) and 34000 tandems.
     
  4. aussiejosh

    aussiejosh Road Train Member

    4,709
    5,409
    Aug 28, 2009
    Airlie Beach QLd
    0
    Same deal its still 12,000, 34,000 34,000 we just slide the axles to distribute the weight.
     
  5. STexan

    STexan Road Train Member

    14,963
    29,154
    Oct 3, 2011
    Longview, TX
    0
    The 53 footers today have the same kingpin setback as any other 48 foot trailer. I don't ever remember any trailers with a "10 foot overhang on the front". No tractor could accommodate that.

    California is still the biggest stickler about not having trailer tandems too far back on 53 footers
     
  6. Z99

    Z99 Bobtail Member

    6
    0
    Mar 13, 2017
    0
    Thanx – I sort of thought that’s how it was done.

    We had 3 or 5 of those 53’ rigs, can’t remember exactly. Cabover tractors (thing of the past I guess) not much cab. They were custom built rigs was my understanding. KW. I was told they needed a computer to figure where to place the 5 th wheel. They’re primary purpose was for hauling wood shavings so volume was the main thing. Had long possum bellies. Probly wheelbase was also a restricting factor too to maneuver around in the mills. Only those tractors could pull them; the others wouldn’t fit. I just phoned and those rigs are sold to some outfit up in the woods or I’d go get a pic. Anyway they were the first.

    I gypoed for 7 years and had 2 40’ sliding axle tractors. Delivered in San Francisco. You can bet those axles were slid forward. Took some doing.

    Took 7 years to get far enough ahead to go broke.
     
  7. Pedigreed Bulldog

    Pedigreed Bulldog Road Train Member

    7,737
    14,422
    May 7, 2011
    0
    ...although that WOULD be an interesting way to defeat the KPRA laws. Wouldn't even take much...already got what, 3' pin setback? Bump that up to 5' and you've gained 2 extra feet you can slide the trailer tandems to balance the load.

    "Yes, occifer, I know I'm pulling a 53' trailer, and I know you're used to seeing more tail overhang than what I've got...but the trailer's pin is set back farther than normal, too, so I'm still in compliance with your ridiculous law!"
     
  8. tech10171968

    tech10171968 Medium Load Member

    627
    851
    Nov 16, 2009
    Daytona Beach, FL
    0
    Virginia's pretty OCD about the kingpin, too.
     
  9. Carrot

    Carrot Bobtail Member

    19
    26
    May 9, 2016
    0
    They had computers in the late 70's?
     
  10. Z99

    Z99 Bobtail Member

    6
    0
    Mar 13, 2017
    0
    I hope you’re kidding.
    Just in case you’re not they’ve had em since WWII maybe a bit before. They were called main frame computers because they were so huge. Kept them in a separate building or part of one. Had special operators – you couldn’t use one yourself. If you submitted a program about noon they’d run it overnight, get your result next day. On paper. Big program - lottsa paper. Enough.
     
  11. Carrot

    Carrot Bobtail Member

    19
    26
    May 9, 2016
    0
    I know they had computers lol. But come on dude you think they were designing fifth wheels for trucks on them with 1970's computer tech lol
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.