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G-class receiver hitch
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Posted 5/6/2010 4:02 PM
4x4abc



Date registered: Apr 2006
Location: La Paz, Baja California, Mexico
Vehicle(s): 02 G500
5000
Re: G-class receiver hitch

Mark,

never flipped a trailer in my life - towing on paved highways only. There are a few bad mountains along my way though.
So, I guess, Oris built a bad receiver. We should let them know.
#171087 - in reply to #171083
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Posted 5/8/2010 12:44 AM
ontum
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Date registered: Nov 2009
Location: Portland, OR
Vehicle(s): 1979 300GDT Cabrio, 1994 W124 603
Posts: 131
100
Re: G-class receiver hitch

This design is very nice and neat. I am thinking about building a hitch like this one or an entire bumper with a receiver hitch attached inside it. What would are the pros of keeping the original 460 bumper?
#171180 - in reply to #171020
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Author
Posted 5/8/2010 11:00 AM
clubgwagen.com
Elite Veteran




Date registered: Apr 2006
Location: gwagenpreserve.com
Vehicle(s): 300GE Cabriolet
Posts: 736
500
Re: G-class receiver hitch

zimm - 5/6/2010 12:05 PM

clubgwagen.com - 5/6/2010 1:57 PM

Yes it is the metal stretching, that is right, there is no worn away metal.
Basically the metalurgy is not so good on that steel they are using.


that would be my guess as ive never seen even the cheapest u-haul receivers do this.

my other guess would be that the poster is trailer towing badass over wildly undulating terrain, and has probably flipped a few trailers in his day. thats not the damage of a hitch merely in horizontal sheer. :)


Nope, I don't offroad with trailers other than around my property real slow in low gear.
Nope, I have never flipped a trailer, although one of my trailers was flipped over in a huge mudslide at my house...but not while attached to a car.....used the unimog to right it back on its wheels.

Nope, Nope, Nope.....but I do use a motorcycle rack, and that has something to do with it, and otherwise, I do haul heavy loads, but not necc. more than the hitch is made for.....like harald, typically cars and jeeps, etc....

I did haul my CAT backhoe attachment once, that was the heaviest ever.....brought it to Palm Springs from NorCal on Harald's trailer.

The hitch on our Land Cruiser gets the same treatment, and it has been on there since 1994, no stretching, no bending, no problems.
So this Oris hitch IS the problem

We have been selling the Curt hitches, and have one on my neighbor's car, and it also tows excavators and tractors and heavy loads, and so far no stretching and no problems......not bad for a $225 hitch vs. $600-800 for Oris.

We ( gwagenpreserve.com )are currently making 460 and 463 rear offroad/overland bumpers with integrated 2" receivers.....we have been testing the prototypes for 7 months......

stay tuned the first will be done in about 2 weeks.....


Edited by clubgwagen.com 5/8/2010 11:06 AM
#171194 - in reply to #171083
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Posted 5/9/2010 2:29 AM
elevatorbernie
Expert




Date registered: Aug 2006
Location: Vancouver B.C. Canada
Vehicle(s): 1989 280GE
Posts: 1347
1000
RE: G-class receiver hitch

Good work Bram, I like the design. Here's the one I made, http://www.pointedthree.com/disc/forums/showthread.php?tid=4523&pos...

Edited by elevatorbernie 5/9/2010 2:41 AM
#171217 - in reply to #171020
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Posted 5/9/2010 8:11 AM
sps
Veteran


Date registered: Oct 2007
Location: "G" is in the DC area
Vehicle(s): 2000 G500 Cabriolet plus others
Posts: 236
100
Re: G-class receiver hitch

Mike,

Will the new bumper match up to a 2000 463 and have holes for park distance control?
#171230 - in reply to #171217
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Posted 5/9/2010 10:39 AM
clubgwagen.com
Elite Veteran




Date registered: Apr 2006
Location: gwagenpreserve.com
Vehicle(s): 300GE Cabriolet
Posts: 736
500
Re: G-class receiver hitch

Yes these will match up to 463 and 460, and there will be options such as holes for the park-tronic sensors, as well as swing out tire carrier option, swing out fuel can option, and hi-lift jack mount option.

#171238 - in reply to #171230
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Posted 5/11/2010 10:52 AM
zimm
Elite Veteran




Date registered: Feb 2010
Location: pittsburgh
Vehicle(s): lx470, 76 fj40, 72fj40, 96 gelandewagen g320.
Posts: 788
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Re: G-class receiver hitch

clubgwagen.com - 5/8/2010 11:00 AM



We ( gwagenpreserve.com )are currently making 460 and 463 rear offroad/overland bumpers with integrated 2" receivers.....we have been testing the prototypes for 7 months......

stay tuned the first will be done in about 2 weeks.....


that was going to be a future question, as i cant seem to find any makers for this vehicle.

whats the price point going to be?
#171341 - in reply to #171194
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Posted 4/8/2013 6:19 PM
bram_r
Expert




Date registered: Apr 2007
Location: the Netherlands
Vehicle(s): 1984 MB 280GE, 1982 MB 300GD, 1986 Subaru XT 4WD
Posts: 1659
1000
RE: G-class receiver hitch

For incorporating an USA style mounting point for the trailer connector in this design, can someone give me some info what type of electrical connector(s) for the trailer is used?
I found following picture in the W463 installation manual. Is this a common mounting pattern for the connector?
If so, someone got some dimensions on the large bolt hole and the bolt pattern of the four mounting holes? Also, when this pattern is cut out in a 6mm plate, will the connector fit as my 7 pin European style connector is mounted as shown in my pics (first post)?

Thanks already,

Bram



(hitch connector US.jpg)



(DSCN8404.JPG)



Attachments
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Attachments hitch connector US.jpg (18KB - 0 downloads)
Attachments DSCN8404.JPG (40KB - 0 downloads)
#212866 - in reply to #171020
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Posted 4/8/2013 7:16 PM
roughneck
Expert




Date registered: Apr 2006
Location: UK, Germany & USA
Vehicle(s): 270 cdi.300 GD 300 GE.lwb 300 GE.swb. Disco 2
Posts: 4398
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RE: G-class receiver hitch

I would think most if not all your answers are here.

http://www.hitchinfo.com/
#212867 - in reply to #212866
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Posted 4/8/2013 8:04 PM
fernweh



Date registered: Apr 2006
Location: Calabasas, CA - Centenario, BCS - Luebeck, Germany
Vehicle(s): Few Mercedes-Benz, a Toyota Amphibious and a Vespa
2000
RE: G-class receiver hitch

Bram,

the original trailer socket used by Mercedes-Benz here in the US is a part from Chrysler.

It it also referred as a 7-pin RV trailer socket.

We have integrated this part in our OEM Type W463 Trailer Hitch package.

Our Hitch design (for W463 1990 up to 2009) does feature a very heavy duty receiver tube compared to the Oris Hitch, please have a look at the pictures.

http://www.g-wagenaccessories.com/products/TrailerHitch.htm

The large hole diameter for the trailer socket is 1.87", the top notch is approx. 0.75" wide and 0.1025" high.
The bolt holes are 0.21" diameter and the bolt pattern is 1.5" x 2.25"

Karl



(IMG_2475.JPG)



(Hitch2C.jpg)



(ConBracketC.jpg)



Attachments
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Attachments IMG_2475.JPG (79KB - 0 downloads)
Attachments Hitch2C.jpg (103KB - 0 downloads)
Attachments ConBracketC.jpg (170KB - 0 downloads)
#212869 - in reply to #212866
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Posted 4/9/2013 12:20 PM
bram_r
Expert




Date registered: Apr 2007
Location: the Netherlands
Vehicle(s): 1984 MB 280GE, 1982 MB 300GD, 1986 Subaru XT 4WD
Posts: 1659
1000
Re: G-class receiver hitch

Thanks Karl!
Also nice hitch btw
#212894 - in reply to #171020
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Posted 9/23/2013 3:43 PM
bram_r
Expert




Date registered: Apr 2007
Location: the Netherlands
Vehicle(s): 1984 MB 280GE, 1982 MB 300GD, 1986 Subaru XT 4WD
Posts: 1659
1000
RE: G-class receiver hitch

I've got a small follow up question on these electrical connectors.
Looking at for example the product overview of Pollak (http://products.pollakaftermarket.com/category/connectors) I see a lot of different style connectors. All the way from 5 to 9 pin connectors.
On the 'rv-type' connectors I see there are 7 and 9 pin versions.

Can someone inform me a bit what is more or less used most commonly on G-wagen type applications?
What type connector is standard on US (imported) 460/461 or 463 G-wagens?

Looking for some options to include some optional type connectors in the hitch.

Thanks,

Bram
#217295 - in reply to #171020
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Posted 9/23/2013 5:39 PM
J.R.
Elite Veteran




Date registered: Apr 2006
Location: Southern Maryland
Vehicle(s): 00 G500, 09 911 4S, 11 Cayenne S, 86 280GE (sold)
Posts: 828
500
RE: G-class receiver hitch

Karl was spot on in his post about the 7 wire connector (also known as 7-blade) for the MBUSA 463 series. http://products.pollakaftermarket.com/item/connectors/rv-connectors... or http://www.etrailer.com/dept-pg-Wiring-sf-Wiring_Adapters-pc-7_Blad... . From these you can buy adapters that convert to 4-Flat and 5-Flat which are fairly common in the U.S. Your link showed 7-Way which is 7 pins, not 7-blades which is different. The way 7-blade is really 6 blades around a center conductor pin.

For the grey market, the 460/461 and 463 appear to all use a variant of the one pictured in this link
http://www.pointedthree.com/disc/forums/showthread.php?tid=20997&po... .

It is my understanding that this is the European "common" trailer wiring connecter like our "7-blade" is here in the States. There is a Mercedes part number listed on the last page for the male end which is what connects into the G.

It sounds like you should buy the Mercedes male connector, add the European wire convertor and then add the 7-blade connector at its end. Then all you have to do is buy 7-blade adapter down to 4-flat or 5-flat. I don't think the Mercedes trailer wiring can support a 9-way connector as there does not appear to be a dedicated electric brake wire.



Edited by J.R. 9/23/2013 6:49 PM
#217296 - in reply to #217295
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Posted 10/18/2013 4:48 PM
bram_r
Expert




Date registered: Apr 2007
Location: the Netherlands
Vehicle(s): 1984 MB 280GE, 1982 MB 300GD, 1986 Subaru XT 4WD
Posts: 1659
1000
RE: G-class receiver hitch

Well, it’s been around 2,5 years since me and my brother designed a receiver type hitch for the 460/461 G wagens.
First version as seen in these pics; based on the original Mercedes hitch bracket I got on my G:

]

Original Mercedes version which gave me the receiver hitch idea:
]

Ordered some drawbars from the States:
]

]

]

]

I used this hitch for about 2 years, worked perfectly and towed both my military and normal trailers with it.
Then I sold it to someone in the States who was desperate about fitting such a receiver hitch on this 460 G and was planning a large road trip with a military trailer. So helped him out, but left me without a proper hitch again 
This however gave me an incentive to design 460/461 receiver hitch 2.0, with some improvements over the first version of course!
See CAD drawings below on how this v2.0 is going to be:

]
(US socket bracket)

]
(Euro socket bracket)

The following features are now incorporated in this design:
- Hitch USA version suited with bracket for electrical US connectors: 5, 6 and 7 pin type connectors
- Hitch Euro version suited with bracket for electrical Euro connectors: 7 and 13-pin connectors
- Redesign kept weight under 5 kgs for keeping the shipping costs down
- 16mm (little over 5/8”) hitch pin now with 90 degree bend, to prevent it from interfering with the electrical connector
- Kept the 83x56mm bolt pattern with M10 welded nuts for permanent mounting of European hitches
- Incorporation of 16,5mm holes for attaching clevis or metal eyes to hook up towing chains.
- The rest of the hitch is made of 6mm sheet metal and designed like the original G hitch, only reinforced with extra metal plates to construct the 2” receiver hole.
- The finished product will have a very durable duplex coating, consisting of an electrophoretic base coat and a black powdercoating finish coat (RAL9005).
- The hitch pin will be electrogalvanised.
- The hitch will come with mounting hardware (4 x M14 high quality bolts and nuts)

Within a few weeks we want to start with production for a batch of hitches for those interested, I of course also need hitches again for my G's!
Anyone who’s interested can contact my brother who has made the design and will do all the work for making orders for laser cutting, press braking, welding, finishing and shipping.
His contact info: info@rndbv.nl. Of course, you can also pm me.
So anyone who’s interested, mail him to have this 460/461 receiver hitch v2.0

Bram
#217735 - in reply to #171020
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Posted 10/18/2013 5:35 PM
stevegsmith
Expert




Date registered: Apr 2006
Location: SF Bay Area, CA USA
Vehicle(s): 82 300GD WVO, 06 Jeep Lib CRD B99
Posts: 1301
1000
Re: G-class receiver hitch

Bram, What's your brother's name?
#217736 - in reply to #171020
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Posted 10/18/2013 6:38 PM
bram_r
Expert




Date registered: Apr 2007
Location: the Netherlands
Vehicle(s): 1984 MB 280GE, 1982 MB 300GD, 1986 Subaru XT 4WD
Posts: 1659
1000
Re: G-class receiver hitch

stevegsmith - 10/18/2013 11:35 PM

Bram, What's your brother's name?


His name is Paul. In our family we all have simple names
#217737 - in reply to #217736
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Posted 10/18/2013 10:16 PM
Otiswesty
Administrator




Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3004
2000
Re: G-class receiver hitch

looks great!
#217738 - in reply to #217737
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Posted 8/19/2014 5:18 PM
jamrock
New user


Date registered: Aug 2014
Location:
Vehicle(s):
Posts: 2

RE: G-class receiver hitch

Hello,
I have a 1980 300GD SWB. I am looking for a receiver hitch, and I think this one is perfect. Do you have any in stock? How much do they cost?

Thanks,
Pat
#223503 - in reply to #217735
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Posted 10/6/2015 10:55 PM
MudMonkey
Veteran




Date registered: Jun 2013
Location: CO
Vehicle(s): '03 G500
Posts: 274
100
Re: G-class receiver hitch

What happened with these? Still making them??
#229789 - in reply to #171020
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