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av8rds's avatar
av8rds
Explorer
May 21, 2013

trailer 'balance'?

Might be a dumb question but my dealer couldn't give me a good answer.

I just bought a new 18' Haulmark enclosed trailer.

My question, I guess, is an enclosed trailer vs open set up to have different 'balance'?

I noticed the tires of my new enclosed 18' trailer appear to be more rearward than my open single place of the same length. After a few measurements I was correct and the open has the tires about 10" forward of where they are on the enclosed . The enclosed trailer is 123" from the front wall to the middle of the front tire and 99 to the rear wall. The open deck I compared to is 113ish and 109ish

I was curious and called my dealer who told me "I don't know why the do that, different manufacturers do it differently" Well no kidding!

So is this designed into the trailer for some reason or ????

6 Replies

  • Still pretty nose heavy now though. If I did the calculations right its already at 555lbs of tongue weight for a 3800lb trailer, already at about 15% tongue weight empty.

    Oh well I'm sure it'll work out, was just more curious than anything
  • You also see this on toy haulers verses travel trailers. A typical TH will have the axles farther back to handle the load in the garage verses a TT which is more centered. What I noticed more than anything else is that swinging the same length TH requires more driver input than the same length TT.
  • I'd rather have then another foot back yet! back is better than forward. Some trailers even whenyou have the proper HW %, if the axels are forward, they still will not pull straight! Tilt deck trailers are notorious for swaying behind tow rigs. Because the axels get set forward so the deck will tilt, the balance is all screwy!

    Marty
  • heavier tongue weight mitigates sway .
    in the extreme case visualize the axles near the very front of the trailer . vizualize the sway .
    in the other case visualize the axles near the very end of your trailer. vizualize no sway .
    i have nice shorelander boat trailer .
    i moved the axles back about 16 inches .
    i tow with my hd 2500 pickup.
    i have no sway in my boat trailer at 80 mph headed for the delta .
    i also replaced my factory 13 inch wheels and tires with 14 inch tires and wheels for an additional 50 % or so load capacity .
    i raised my trailer fenders 1.5" to do this .
    i frequently tow my boat very long distances at night , going and returning .
    i have not carried a spare for my boat trailer for the last decade .
    the OP should be very glad his axles are more rearward .
    i have never had a flat or a wheel bearing failure .
    i have so much reserve capacity that there is no threat of tire failure .
    i am the guy in your spot on the water because your boat trailer had tire issues .
  • When I build utility trailers for someone, I always go with the 60/40 rule. 60%in front, 40% in the rear.
  • By putting the axles further back, it puts more of the weight on the TV than the trailer axles. This could be important if the axles are going to be loaded at their capacity. And, it could just be the preferance of that particular mfg.

    Bill

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