smokeywren

On my 5er, my local welding shop/fabricator extended the trailer frame back far enough that he could add a class III receiver hitch rated for 500 pounds weight-carrying capacity. I then plugged in a cargo carrier rated for over 500 pounds of cargo weight. Like this one:
https://www.etrailer.com/Hitch-Cargo...rt/C18153.html

Then I loaded my ~300-pound 5,000-watt Honda portable generator with electric start on that cargo carrier.
https://www.electricgeneratorsdirect...FReVfgodzOwPjQ

Yes, we worn-out old men have to have electric start, even on a Honda.

Then I pulled the RV power cord from the side of the 5er back to that generator and plugged it in. Worked great for camping in the boonies, such as the camping area at Texas Motor Speedway where electricity was not available.

I didn't attempt to run the generator when on the road, but I'm sure it would have worked fine if I had supported the power cord along the side of the 5er.

Mg05

Make sure to find a way to lock the generator up though. Lots of thieves would love to find a free generator just sitting on the back or an rv.

NC F150

I have heard that adding a platform to the back of a TT doesn't work well. That the fixed pivot point on a truck and the trailer axles act as a fulcrum and really whip the back up and down. (Compared to the front.). Perhaps a 5er is different? I don't know. Not even sure if this is true. Just an argument I heard against transporting bikes on the back of a TT.

I would love to add a hitch to the back of mine for generators. Would lighten the tongue a bit and be much more manageable to load and unload. It's a pain to try and load a generator in the back of a truck when hitched up.

smokeywren

Yeah, most 5ers are different in that they are designed to have more percentage of hitch weight than TTs. Adding 500 pounds of weight behind he rear bumper reduces hitch weight, but on a 5er you can still manage to have at least 12% to 13% pin weight with careful distribution of weight within the 5er. We had absolutely no problems with inadequate pin weight with about 400 pounds hanging off the rear end of the 5er. It's about 300 miles on I-20 from my house to Texas Motor Speedway, and we made that trip at least twice per year for several years with no problems.

But a TT is designed to have less hitch weight than most 5ers. If I added 500 pounds of weight behind the rear bumper of my current TT I would probably have less than the minimum required 10% hitch weight, which would result in the problems you mentioned.

You need to locate a good welding shop - probably one that caters to farmers and ranchers and maybe oil field workers. Mine is good at fabricating whatever is needed to get the job done.

And you don't want to lighten the tongue too much. You want at least 10% of gross trailer weight as tongue weight when a TT is wet and loaded on the road. So if you begin with a small "lite" TT, with a 5k generator hanging off the back of the TT you'd probably wind up without enough tongue weight.

With a TT, instead of a heavy 5,000-watt generator, consider two of the smaller 2,000-watt inverter generators tied together. That's enough generator capacity to run one AC if you don't try to run the microwave and coffee maker and hair dryer at the same time. And the Honda EU2000i is small enough and light enough that you can easily manhandle them into the front "basement" of the TT, so you wouldn't need the cargo carrier.
Honda EU2000i-EU2000i-Companion Combo kit


I often haul one EU2000i in the front basement of my TT to use when I need electricity for lights and other stuff without the AC running. I'm a weakling senior citizen, but I can manage to manhandle that one generator into the front basement.

acdii

I had given it a thought to weld in a new bumper that can support the Genny, but after adding up the additional weight of all the pieces, it would knock my TW to 8%, and there would be no way I could move enough weight forward. The frame is too short to start with as the actual bumper is 2" off the back wall. The stabilizers are also welded to the frame at that location was well, directly under the end wall. Would have required a lot of modifications and would damage the insulating belly covers.

Putting it on a rack over the LP tanks will work since I already carry the gen in the bed of the truck.