Join Truck Conversion Today
Reply
 
LinkBack Thread Tools Display Modes
 
Old 07-30-2016, 02:26 PM   #1
Junior Member
 
Join Date: Jul 2016
Location: Gainesville
Posts: 2
Default 40k lb Bumper Hitch convert to Gooseneck

I have a motorhome i just purchased, its a 450HP Freightliner 32ft box rated to bumper tow 40k#, its not a toter bed, the 32 box is all a box. But i have multiple gooseneck trailers id like to tow with it.
I know the obvious reasons the gooseneck might hit the box but has anyone ever seen a hitch that someone has made for this? I am looking at building my own and extending it about 2ft off the back of the frame, My max weight is 21,000lbs and its rated to tow 40 so i assume i will be fine but i would really like some advice and pictures.

Thank you for the help.
__________________

BigcountryGA is offline   Reply With Quote
Old 07-30-2016, 06:51 PM   #2
Member
 
jasong's Avatar
 
Join Date: May 2015
Location: Full time on the road
Posts: 69
Default

I thought about this, never found one that someone had done.
I thought about building a stinger like the wheel lift on a row truck.
__________________

jasong is offline   Reply With Quote
Old 07-30-2016, 08:33 PM   #3
Junior Member
 
Join Date: Jul 2016
Location: Gainesville
Posts: 2
Default

I was thinking something like that. I have searched a lot but havent found one. I am sure i can build one, my only issue try to not hit the motorhome in tight turns.

My theory is if its rated to tow 40k lb the tongue weight will not be anymore than its rated for since ill never tow more than 21,000lbs.

If i end up doing this ill post a picture. Just hope someone has done this for some advice.
BigcountryGA is offline   Reply With Quote
Old 07-30-2016, 09:42 PM   #4
Senior Member
 
samcrimm's Avatar
 
Join Date: Sep 2015
Location: Tullahoma
Posts: 267
Default

Here is a great set up for what your talking about!
__________________
2005 Renegade #1204 42 footer Columbia M3200CH-435,12 speed auto Cat 12 kw Genset, Roadtrip Mission in-mot Dish Network, Washer dryer combo, Jeep Liberty toad,1973 Cessna Skylane,1955 Chev 210 Belair survivor
samcrimm is offline   Reply With Quote
Old 07-31-2016, 07:52 PM   #5
Senior Member
 
Join Date: Jan 2011
Posts: 524
Default

samcrimm- Good find on that hitch picture, I've never seen anything quite like that. Looks like a very elegant, and expensive, solution. Probably doesn't sound so bad vs. the total price when that guy is ordering a shiny new Powerhouse coach though.

Take a look through the trucks here:
Home | Heavy Haulers RV Resource Guide
those guys all haul 5th wheel campers with hdt's, and there are a few wild frame stretches on there to put the 5th wheel well behind a big box. Setting up for a gooseneck is essentially the same.

My concern on your project is hitch weight. Yes, your truck is rated to tow 40k trailer, but what hitch weight? Industry standard for a tag type trailer for proper weight distribution and handling is 10% of total trailer weight, but for a 5th wheel or gooseneck trailer that number is 20%. So even if for arguments sake you could hook your gooseneck right where the existing ball is, you may be over weight on the hitch weight. Then if you figure the additional leverage of putting that ball at least 4' farther back behind the truck (and farther from the fulcrum point of the rear axle) the worse that gets.

My suggestion is you need some solid advice from someone with better math/engineering skills on how all those lengths and weights workout before you start modifying anything. You'd really hate to find out the balance is all wrong at 75mph the first time you hit a bad curve or crosswind.
hot rod is offline   Reply With Quote
Old 07-31-2016, 08:45 PM   #6
Senior Member
 
Bob86ZZ4's Avatar
 
Join Date: Feb 2009
Location: St. Paul, MN
Posts: 1,739
Default

How about just using something like this?: Automated Safety Hitch, adds an axle to your pickup truck - welcome to mrtrailer.com
__________________
'03 Freightliner FL112, 295" wheel base, with '03 United Specialties 26' living quarters, single screw, Cat C12 430 h/p 1650 torque, Eaton 10speed , 3.42 rear axle ratio
Bob86ZZ4 is offline   Reply With Quote
Old 07-31-2016, 08:46 PM   #7
Senior Member
 
Bob86ZZ4's Avatar
 
Join Date: Feb 2009
Location: St. Paul, MN
Posts: 1,739
Default

Or one of these?: TOW ALL dolly – System for hauling 5th wheel and goosenecks! | Ridingmode
__________________
'03 Freightliner FL112, 295" wheel base, with '03 United Specialties 26' living quarters, single screw, Cat C12 430 h/p 1650 torque, Eaton 10speed , 3.42 rear axle ratio
Bob86ZZ4 is offline   Reply With Quote
Old 07-31-2016, 08:59 PM   #8
Senior Member
 
Join Date: Jan 2011
Posts: 524
Default

how about something like this:
The Automated Safety Hitch | Trailer Hitch | Gooseneck Horse Trailers | 5th Wheel RVs | Flatbed Goosenecks | Fifth Wheel
there used to be something similar called a tow-buddy, but I couldn't find anything current on it.

That dolly may be pricey, but when it comes time to move on it would presumably have some resale value, while a big ugly extended gooseneck hitch on the back of the coach may make it pretty hard to sell, not many buyers would want that.
hot rod is offline   Reply With Quote
Old 07-31-2016, 09:01 PM   #9
Senior Member
 
Join Date: Jan 2011
Posts: 524
Default

great minds think alike!
hot rod is offline   Reply With Quote
Old 07-31-2016, 09:22 PM   #10
Senior Member
 
Bob86ZZ4's Avatar
 
Join Date: Feb 2009
Location: St. Paul, MN
Posts: 1,739
Default

Here's a video of one:
__________________

__________________
'03 Freightliner FL112, 295" wheel base, with '03 United Specialties 26' living quarters, single screw, Cat C12 430 h/p 1650 torque, Eaton 10speed , 3.42 rear axle ratio
Bob86ZZ4 is offline   Reply With Quote
Reply

Tags
convert gooseneck, motorhome 40k hitch

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 02:20 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.