Re: 17' to 25' single axle EZ load Shorelander adjustable single axle trailer
I would prefer to know from Shorelander what the capacity is. Why not call them with what information you do have, perhaps from the registration or title, or Bill of Sale. They should have no problem helping you.
I checked the Ez-loader trailer web site, and based on what you have furnished for information, I could not find an exact match. I did find a 17-20' trailer that was rated 2800#, single axle 13" tires, and a 4000# rated,
tandem axle 13" wheel trailer, 17-20'.
My instinct tell me that if the person telling you that the tires can be changed to accommodate a heavier load is the same person trying to sell you the trailer. And a load of BS. Don't make a mistake that you will really regret. Buy a trailer rated to carry the load you expect to put on it, as well as the weight of the trailer. That means boat weight (including engine), equipment, fuel, gear, and the trailer.
Any short cuts will only cost you more in the long run with repairs, up grades, and aggravation, at the very least.
A proper trailer can make the difference between enjoyment of your boat, and not wanting to use it.
Good luck!!