I plan on building a 30 ft gooseneck trailer using framerails from a 28 ft '79 Dodge RV. The plan is to box the frame for additional strength. The question I have for this project is;

Should I go with a single dually axle or dual dually axles? I'd like to be able to haul at least 15k on the trailer. Any other advice is appreciated. Thank you!

 

IDK what the frame will take, but I'd take 2 axles over 1.

 

The more axles, the less stress on the frame rails. I'm not real sure about yer Idea of using an TV chasis though. An RV is designed to carry weight spread one the entire length and a trailer typically is taking the bulk of the weight within the space of a foot or two.

I know I used an old TV trailer once to build a flatbed out of. It was a fail. I used It to haul hay with but i never would have used It for equipment.

 

Thank you for the replies guys! I kinda figured 2 axles would be better.....better safe than sorry. About the framerails though, this particular frame looks exactly like the frame in my '92 Dodge D350. I would imagine I'll have to add in additional crossmembers. I just want to build a safe unit to haul. I guess if nothing else, I'll pony up for some 8x2 channel iron and go from there.

 

For a good heavy duty gooseneck its cheaper to go with "H" beam on a shorter trailer or "I" beam on a longer one.

 

My current trailer is a shortened single-wide mobile home frame, has 14' 4x2 channel iron framerails and tandem single axles. I hauled a '92 Ford extended cab 4x4 w/a 460 and automatic to the scrapyard a # of months ago. My trailer hasn't been the same since. The framerails have a slight bow in them now.

The Ford truck and the extra junk I put in my truck bed only weighed 6800 lbs. I like your idea about using I-beam steel. I think I'll go that route. Its always good to get a 2nd opinion. Thank you again guys!

 

If you would like i can post some pics here soon.

 

Yes indeed! That would be great!

 

I ALMOST picked one of those up....being a double axle. But looking at the frame rails....I was worried it would bend. It was very rusty, too.

Reading this....seems to confirm my worries, l.ol

 

Roger that ToMang07. If I had to do it again, I would at least box the framerails. I got the trailer for free, so it wasn't a big deal. I didn't think I'd be hauling heavy loads with it, so I wasn't worried about it. Since I've had the trailer, I've hauled up to 8800 lbs with it. Trailer frame is slightly bent and I have a broken main leaf on 1 side of 1 axle. Its time for a bit of an upgrade LOL!