Towing doubles

Permits for overlength are not permanent, to the best of my knowledge, and are not reciprocal. They're a one-time use thing, and you need to file for one in every state you'd travel through. So every time you wanted to venture into a state where you were overlength, you'd need to apply for a new permit. Terribly inconvenient.

You could take your chances and roll the dice that an LEO or DOT officer won't pull you over and make you hold a tape measure. Since you're an RV, and as long as it doesn't look hinky from a distance, you probably won't get hassled. Probably.

A separate brake controller for each trailer is a necessity, because the brakes don't behave exactly the same on each trailer. You can try to adjust the brake shoes on each trailer so the same amount of power from the controller to each trailer will cause proportional braking, OR you can adjust the shoes properly and use separate controllers to tune each trailer's reaction to braking.

donn0128 wrote:
Not a smart idea. Your likely already far over your trucks limits, and adding more burdin to it could simply build issues.

Please read the Terms Of Use for this forum. you are not permitted to use common sense and logic in posts.
bumpy

donn0128 wrote:
Not a smart idea. Your likely already far over your trucks limits, and adding more burdin to it could simply build issues.

x2

Not a smart idea. Your likely already far over your trucks limits, and adding more burdin to it could simply build issues.

I have Hydraulic surge disc brakes on my second trailer, no need for any additional wiring or controller.

I would "guess" that with that extra length permit you might need a flag car ahead/behind.?????????????????
bumpy

I have always been under 65 ft so I have not inquired of a permit. I travel too far to many states to bother with all that. I have met two different people that are over and they just do it and said they don't worry about it.

One was pulling a Jeep behind about a 37-foot fifth wheel and the other was pulling a small trailer with a side by side behind a fifth wheel about the same size. I think they were both about seven feet over.

I'm running a short bed crew cab, 30 foot FW, 14-foot tandem-axle utility trailer and I'm a few inches under 65.

At first I had a 12 foot single axle trailer which was 2990 lb gross so it did not require brakes. I now have a 14 foot tandem axle with brakes on the rear axle. When going to this new trailer and pulling just it behind my 2014 Ram I discovered how poorly the truck brake controller was doing. It gets into a whole issue with late model Ram trucks. I install The Prodigy 3 with heavier gauge wiring from that controller to the back of the truck. I haven't double towed with it yet but the voltages I'm seeing back there are far better than they were. The Prodigy can power 4 axles.

I'll be double towing next week and see how it works. I may install another brake axle on the utility trailer if needed but just getting the proper voltage back there should make a big difference.

Sounds like you would be about 72 to 74 ft depending on truck. Some may suggest an Idaho tote but It also sounds like too much for a 3/4 ton. You are probably maxed out or over now aren't you?