Gooseneck Trailer for m7040

[JWR]

That's so lame. So with identical axles/frame/hitch, etc., they increase the capacity rating by adding tires with higher load capacity??? That's so lame. What do they charge for this "heavier" trailer???

I don't recall price differences (not a whole lot) but that is exactly the same thing I ran into with several sources -- in the 12K, 14K range the only difference was tires and wheels. The chassis was plenty stout enough for the larger number. The main diff was tire ratings. As I recall in the 16K model with Pequea the frame & all was the same but the axles were stronger.

 

[JWR]

Using the OP's own description of his load, 10K, he'll either have to load the truck very heavily or overload the trailer axles to make your scenario work. Using your numbers and figuring 1,500 on the tongue, he's only got 7K of payload capacity.

Ovrszd: As far as I can tell, his 10K load plus around 3.5K for the trailer itself (that is what my Pequea 1018 weighs) makes 13.5K total load. Whatever load is borne by the truck (say 1500lb) is subtracted from total load and leaves what is borne by the axles so he would only have 12K on the axles. With them rated at 7K each it looks to me like he has a reasonable 2K margin. Sorry, I just don't follow your 7K payload. (?)

 

[LD1]

Tires shouldnt make the difference in trailer rating.

A trailer with 7k axles......it dont matter if each tire can carry 3500#, or 13,500#......its still 7k axles.....and thus ~14k trailer.


A "16k trailer" would have to have axles rated for 7k IMO. Unless they are blurring the line even further and considering the 7k rating as a "sprung" weight rating. And as such, the weight of the axles, wheels, and tires technically dont count as weight being "carried" by the axles.

 

[ovrszd]

Ovrszd: As far as I can tell, his 10K load plus around 3.5K for the trailer itself (that is what my Pequea 1018 weighs) makes 13.5K total load. Whatever load is borne by the truck (say 1500lb) is subtracted from total load and leaves what is borne by the axles so he would only have 12K on the axles. With them rated at 7K each it looks to me like he has a reasonable 2K margin. Sorry, I just don't follow your 7K payload. (?)

I was figuring the trailer at 5,500. Didn't realize those trailers were that light. I must have missed something. My 28+4 dual wheel weighs 6,800. Sorry.

 

[ovrszd]

Tires shouldnt make the difference in trailer rating.

A trailer with 7k axles......it dont matter if each tire can carry 3500#, or 13,500#......its still 7k axles.....and thus ~14k trailer.


A "16k trailer" would have to have axles rated for 7k IMO. Unless they are blurring the line even further and considering the 7k rating as a "sprung" weight rating. And as such, the weight of the axles, wheels, and tires technically dont count as weight being "carried" by the axles.

Beats me??? I know there is some cheating going on with tongue weight. But in your example, I agree. You can put airplane tires on the trailer and it's still only got 7K axles. Beats me????

Usually the issue with tires is to make sure the tires can meet the axle rating.

 

[LD1]

Yep, tires don't determine axle capacity.....as long as.....they at least meet the axle rating. Which most oem trailers do.

Only time tires is ever an issue, is if axle is rated more than the tires as per the sidewall. And then you must derate

 

[carlhwv]

I was figuring the trailer at 5,500. Didn't realize those trailers were that light. I must have missed something. My 28+4 dual wheel weighs 6,800. Sorry.

The gooseneck I've looked at ranged from 4200-7600.

 

[ovrszd]

The gooseneck I've looked at ranged from 4200-7600.

Yeah, that's more like it.

JWR threw an apple in with our oranges. Just looked up his trailer. I believe it's a 20' bumper hitch.

 

[carlhwv]

Yeah, that's more like it.

JWR threw an apple in with our oranges. Just looked up his trailer. I believe it's a 20' bumper hitch.

 

[JWR]

True, mine is not a goose. I asked if he had to have a goose or not several posts back and don't recall the answer. Sorry for that confusion.

The 5th wheel versions do weigh more and most of that added weight is steel, forward and near the truck. My guess is that the added weight is readily supported inside the truck bed where it would not be on the rear tip of the truck. If that be true, the end result payload would be about the same for a given quoted capacity (e.g. a 12K GVW, whether goose or bumper pull), the truck would just bear more weight due to the type of trailer.