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New Bumper and Generator Platform for my Trailer

4X4Dodger
Explorer II
Explorer II
While in La Paz Mexico (Baja) I had a welding shop come to the campground and remove my existing Bumper and replace it with a new one that I designed and they built. I also had them make a steel box for my Generator.

My goal was to have a place to permanently install my Generator close to the power cord and get it out of the back of my truck. I also wanted to have a place for a storage box. Soon I will be removing the dinette and the couch in the trailer and replacing with a table and chairs and a "Real" Couch that one can actually sit on without requiring the ministrations of a Chiropractor the next day.

This modification will reduce my storage a bit and I needed to add some,thus the bumper.

So here are some pics and some comments on that modification.

Note that I had already calculated that the additional weight would not be a problem and as it turned out it has not adversely affected the handling or ride of the trailer in any way I can detect.


Here is the Frame of the new bumper being readied for install. We tacked it on and the next day I drove to their shop to finish the job as they were afraid they would blow the breakers in the RV park.



Here the crossmembers are being added.



Here is the finished bumper.



As you might notice the crossmembers are offset. This is for two reasons, the main one being to accommodate the mounting bolt hole pattern in the frame of my Generator.

Below you can see the generator in its steel pan base mounted to the new bumper. The box is designed to be simple to make, waterproof, strong and secure. The Generator is bolted through the pan and through the cross members with self locking nuts.



Here is the completed box



The generator will be additionally secured from theft by a locking receiver pin just like the one you use on your hitch. I will drill a clearance hole through the generator frame and the crossmember and insert the pin through and lock on the underside.

This I had to wait to do in the US so I could get a pin of the right size. I will add photos of that later.

I thought about buying a generator box off the shelf, but at more than $800 dollars I decided against it as my generator only cost me $500.

This entire project cost me just a little over $300 dollars including materials and labor paint and hardware. If I had done this in the states it would have been at LEAST $1000 or more.

For those of you interested and curious about how the bumper was mounted. It was welded directly to the trailer frame. My frame is one piece steel I beam. I increased the contact area of the bumper and weld area by over 200% with the trailer frame.

Also I increased the wall thickness of the longitudinal frame members (which are steel box sections) of the bumper from the original parts which were.092 thick to .125.

While I didnt weigh the bumper my educated guess is that it weighs about 80 lbs. The wieght of the original is I would guess about 45lbs. The only piece I kept from the original bumper was the Cross member (bumper). At .092 wall thickness it is plenty strong enough.

I am very happy with this Mod as it makes using my generator and accessing the ladder and storing stuff so much easier than before.
16 REPLIES 16

icanon
Explorer
Explorer
Jimf1234 wrote:
I like it. I made one for my Honda 7000.


Nice! Like the cover for the gen.
Loving wife and 2 beautiful daughters.
Chocolate Lab, Lily
2014 Dodge Ram Laramie Hemi 5.7 with 3.92
2014 Dutchmen Kodiak 290BHSL
ProPride 3P Hitch
Progressive Industries EMS-PT30C
Love my Weber Q1200
Me a Happy man on retirement!!!

Jimf1234
Explorer
Explorer
I like it. I made one for my Honda 7000.


Moderator edit to re-size picture to forum recommended limit of 640px maximum width.

2013 Sandpiper 365 SAQ
2016 Dodge 3500 900ftlbs Limited

Happy_Prospecto
Explorer
Explorer
One thing I don't have to worry about my MIL has her own broom.
Kevin
Retired, Fulltime RV'er, 1999.5 F350 4X4 CC Diesel Flatbed
2007 Alpenlite Defender Toyhauler, 2019 Polaris Ranger
Bob, the Yorkie Terrier helping me prospect til the money runs out

Lantley
Nomad
Nomad
Looks like a nice job.
Beware of that tongue weight! I did something very similar on my prior TT.
Turned out well. But I did have to reload everything to compensate for the reduction in TW.
19'Duramax w/hips, 2022 Alliance Paradigm 390MP >BD3,r,22" Blackstone
r,RV760 w/BC20,Glow Steps, Enduraplas25,Pedego
BakFlip,RVLock,Prog.50A surge ,Hughes autoformer
Porta Bote 8.0 Nissan, Sailun S637

DutchmenSport
Explorer
Explorer
4X4Dodger wrote:
DutchmenSport wrote:
Looks real nice and looks nice and strong. Now! Lots of room left so when your mother-in-law wants to go camping with you, there's somewhere she can ride! :B


I am NOT married...thus no Mother in law to store back there. But nice idea.


It gives the rest of us "hope!" .... Thanks for sharing!

msgtord
Explorer
Explorer
Nice work. I like it.
1995 Fleetwood Mallard 22B.
2014 Ford F250 Crew Cab. 6.2, 4x4.

4X4Dodger
Explorer II
Explorer II
DutchmenSport wrote:
Looks real nice and looks nice and strong. Now! Lots of room left so when your mother-in-law wants to go camping with you, there's somewhere she can ride! :B


I am NOT married...thus no Mother in law to store back there. But nice idea.

4X4Dodger
Explorer II
Explorer II
GordonThree wrote:
How has this affected your tongue weight? Or is this a motorhome, so no tongue to worry about?


No it's a Travel Trailer and it has not affected my tongue weight enough to notice. I have not weighed it yet since the install.

But even with the lever arm that is created by the extended bumper and the load that is on it, The REAL fulcrum is the rear axle, the theoretical fulcrum is the center line between the two axles. So the effect of this is to have very little effect on tongue weight.

I do intend to weigh it before I leave El Centro now that I am back in the states. but it was just not feasible in the Baja.

If there had been any significant affect to the tongue weight I would have immediately felt it driving. And basically the trailer handles the same as it always did.

One good way to judge this is by the squat of the truck suspension. My truck sits level all around with the trailer hithed up as measured at the apex of the wheel wells to the tire tread. It didnt change.

The big issue is you have to be aware of the extra 3 feet on the back and how it swings in turns.

4X4Dodger
Explorer II
Explorer II
Jay Pat wrote:
Did you do anything for vibration isolation?
Pat


Vibration hasnt been a problem as the motor mounts on the champion are pretty good and when it's running and you are in the trailer you don't feel anything from the generator.

icanon
Explorer
Explorer
DutchmenSport wrote:
Now! Lots of room left so when your mother-in-law wants to go camping with you, there's somewhere she can ride! :B


Great idea! I'm thinking about installing one for my mother in-law.
Loving wife and 2 beautiful daughters.
Chocolate Lab, Lily
2014 Dodge Ram Laramie Hemi 5.7 with 3.92
2014 Dutchmen Kodiak 290BHSL
ProPride 3P Hitch
Progressive Industries EMS-PT30C
Love my Weber Q1200
Me a Happy man on retirement!!!

Jay_Pat
Explorer
Explorer
Did you do anything for vibration isolation?
Pat
2010 Ford F-350 SRW
2021 Grand Design Reflection 315

DutchmenSport
Explorer
Explorer
Looks real nice and looks nice and strong. Now! Lots of room left so when your mother-in-law wants to go camping with you, there's somewhere she can ride! :B

GordonThree
Explorer
Explorer
ok
2013 KZ Sportsmen Classic 200, 20 ft TT
2020 RAM 1500, 5.7 4x4, 8 speed

icanon
Explorer
Explorer
GordonThree wrote:
How has this affected your tongue weight? Or is this a motorhome, so no tongue to worry about?


4X4Dodger wrote:


My goal was to have a place to permanently install my Generator close to the power cord and get it out of the back of my truck.


It's a TT
Loving wife and 2 beautiful daughters.
Chocolate Lab, Lily
2014 Dodge Ram Laramie Hemi 5.7 with 3.92
2014 Dutchmen Kodiak 290BHSL
ProPride 3P Hitch
Progressive Industries EMS-PT30C
Love my Weber Q1200
Me a Happy man on retirement!!!