I think this hitch will work for my 1992 Dodge 1 ton full size van:

http://www.etrailer.com/pc-H~41910.htm?vehicleid=1992797

Now I need a weight distribution hitch...which are here:

http://www.etrailer.com/c-wd.htm

But I am not sure which one to get. Plan on an 18 foot trailer and hauling 116, 
123, 126's, etc...that weight range.

Thoughts?

Chris



--- On Thu, 1/15/09, Fmiser <fmi...@gmail.com> wrote:

> From: Fmiser <fmi...@gmail.com>
> Subject: Re: [MBZ] TRAILER & block heater for Chris
> To: "Mercedes Discussion List" <mercedes@okiebenz.com>
> Date: Thursday, January 15, 2009, 2:38 PM
> > Christopher wrote:
> 
> > That sounds really nice. What is a weight distribution
> hitch? 
> 
> To make a trailer dynamically stable, at least 10% of the
> mass
> needs to be in front of the trailer axles. 15% is better.
> 50%
> is best (it's then called a "semi-trailer"
> -like the big
> trucks use - rather than a "full trailer"). With
> a majority of
> the mass in front of the trailer axle, side-to-side
> disturbances tend to be self-canceling. With more mass
> behind
> the axle, the oscillations self re-enforce. This is a
> common
> cause of upside-down trailers jack-knifed in the ditch.
> 
> With a ordinary hitch, mass = weight. So a 2,000 lb (900
> kg)
> trailer and a 4,400 lb (2,000 kg) car on it the gross
> weight
> of the trailer is 6,400 lb (2,900 kg). 15% of that is 960
> lb
> (435 kg). That's how much weight will be on the very
> back of
> your van. It _will_ raise the front.
> 
> The solution is "weight distributing". It is a
> bulky hitch
> assembly that's commonly seen on camper trailers. With
> the aid
> of one or two spring bars, tension is applied at the hitch
> point lifting the back of the tow vehicle. The result is
> some
> of the weight is "distributed" to the trailer and
> steer axles
> - but the mass stays so the stability is not affected.
> 
> Now that I have one, I can't see ever doing without it
> - at
> least when the trailer gross is more than 1/2 the truck
> weight. 
> 
> --             Philip
> 
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