Is It Possible to Add an Axle to a Single Axle Trailer
Updated 07/02/2025 | Published 02/01/2021
Question:
I have a ? Is it possible to add another axle to a Single trailer it’s a 5x10
asked by: Francisco
Expert Reply:
It is possible, but you'll need to use the linked formula to determine the correct axle placement. Because you're adding an axle, you'll likely need to remove the existing spring hangers and reposition things so that the center spring hanger sits right about where the original single axle used to sit, but the formula will walk you through that.
Also, keep in mind that if you add an additional axle with the same capacity as the existing, you won't necessarily double the weight capacity of the trailer. You still might be limited by the capacity of the coupler or the structure of the trailer itself.
You'll also need new spring hangers and you'll need to add an equalizer and springs but the specific parts needed will depend on the capacity of the axles used.
Product Page this Question was Asked From
Dexter Trailer Axle Beam with E-Z Lube Spindles - 95" Long - 3,500 lbs
- Trailer Axles
- Leaf Spring Suspension
- Standard Grade
- No Hubs
- 3500 lbs
- Spindles Only
- 80 Inch Spring Center
- 95 Inch Hub Face
- No Drop or Lift
- Dexter
more information >
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on Trailer Axles
Bryan
6/26/2025
Mike i have a 1987 continental trailer. the gvrw is 4000#s, but boat and trailer both weigh 4250#s but when we load the boat with vacation supplies it is heavier. i have twice in 3 years blown tires on our return trip. would putting a second axle on the trailer help with the added weight or would adding different leaf springs make a difference. Thanks, bryan