I would get a good trailer brake controller and pull it, drive slowish.
This is what people did before 1000 lb TQ diesels came out with exhaust brakes and s###.
Will it stop really quickly, no, it will not. But 25k lbs behind a new dually that is rated for it won't either, f### what the stickers on em says.
If you're not a good driver with a well maintained truck and trailer you shouldn't do this. Or if it worries you at all you shouldn't do it either. I'm a farm kid and worked on drilling rigs, gas plants, grain elevators, etc. If it'll pull it I'll hook it up. Just my .02.
No, poor people without a choice did it. And the stickers I was cursing are the ones on the new 1 tons claiming they can safely pull 29000 lbs. But then again, "safely", is always an arguable boundary.
Safety is an arguable boundary? Sorry, but that is 100% wrong.
Let's back up to post#4.
"
Thanks. I've got a 15k lb dozer & a 25' dovetail all-steel 3-axle trailer, which I will probably take one axle off & use 2 8k axles. The truck and dozer alone put me over the listed GCWR. Think this truck would pull it ok short distances? I have two properties about 20 miles apart. I don't expect to ever pull it a longer distance than that. I also have to cross one bridge. This truck is paid for & basically all I've got to pull anything. I'd prefer to not have to buy a stronger truck. This one MIGHT get used 3 or 4 times a year. I've yet to pull anything with it until I get a transmission issue figured out. I've posted a thread in the transmission section in case you guys may have some input on that as well. Thanks again for the towing info."
The OP has a trailer that is heavy... with 3 axles ( assuming at least 6000 pound axles )
He also has 2 properties and a 7 1/2 ton crawler dozer.
He wants to re-engineer the trailer ( remove 3 axles and install 2 8000 pound axles ( not sure what the original axles are, but I assume 6000 pound axles, with 6 bolt wheels )
If the trailer was built as a tridem, and you plan to put nearly the same load on 2 8000 pound axles, why the hell don't you think they would have built it as such??
He wants to keep the truck, use it 3-4 times a year at the outside. ( yet modify the trailer, perhaps purchasing two axles )
It is obvious the OP is not poor as alleged. The money spent on 4 x float moves ( figure 1/2 hour for load / unload cycle ) + 15 minute drive, that works out to about 45 minutes x perhaps 8 total moves.
At $ 135 /hr ( in this area ) that would be a total of about 6 hours of floating time at $ 810+tax, all while staying legal and safe.
Even if the OP has 8 bolt wheels and hubs, and only needs to purchase 2 axle beams with backing plates, he would still spend that money.