Changing single axle to tandem

[regal5]

I am considering making my single axle trailer into a tandem axle. Any pros or cons about doing it. How about info on where to place axles on trailer? Thanks in advance for any info.

[Crappie Bob]

The CONS are now you have to buy 4 tires

I have always used the axle position as the center spring hanger position when rebuilding equipment trailers.
The original axle is where the pivot load is, and it splits with two axles. I would guess it is the same on a boat trailer.

I am considering making my single axle trailer into a tandem axle. Any pros or cons about doing it. How about info on where to place axles on trailer? Thanks in advance for any info.

[leonreno]

The cons, as stated, you will have to buy twice as many components, tires, hubs, bearings, seals, etc. it’s also a little harder to to turn while backing up, mainly at harder angles. But pros are safer if you blow a tire.

[wmitch2]

You'll be time and expense ahead if you just buy a new or other trailer that is already a tandem !! More Tires, Springs, Brakes, FENDERS, ect !! And then it will be Geometrically correct !!