Upgrading Leaf Springs on a Trailer with a 3500 Pound Axle
Updated 02/03/2025 | Published 02/14/2018
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Question:
want to upgrade my springs i have a 2016 5x8 enclosed trailer with a 3500lb axle I will buy the stronger kit i see here but would like to upgrade springs
asked by: Brian
Expert Reply:
If you are wanting to go to higher capacity leaf springs I would advise against it. The problem is that since the trailer axle is rated for 3,500 pounds you won't gain any additional capacity by switching to higher capacity springs. What it will do is not allow the suspension to compress as much leading to a very stiff and jarring ride for the trailer and anything in it.
Another problem is that alternate springs may not have the correct measurements and that would mean that the spring hangers would have to be cut of and welded back on in the correct locations by a professional welder.
Right now we have several spring options for 3500 pound axles if you want to replace what you have. Spring # e54SR is a 4-leaf spring measuring 25-1/8 inches from eye center to eye center. Spring # SP-210275 is also a 4-leafer but is 27 inches and is a little shorter at 2-3/4 inches depth as opposed to the 3-1/2 inch depth of SP-e54SR. Spring # e59SR is a 3-leaf option measuring 23-1/8 inches.
Product Page this Question was Asked From
4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 25-1/4" Long
- Trailer Leaf Springs
- Double Eye Springs
- 9/16 Inch Eye
- Nylon Bushings
- 3500 lbs
- 1-3/4 Inch Wide
- 4 Leaf
- 25-1/4 Inch Long
- Standard Grade
- etrailer
more information >
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on Trailer Leaf Springs
Dirk
2/3/2025
What do you have for an eye/slipper spring , 3500lb axle , current springs are 1 3/4" wide. Boat trailer. Measures from center of eye to slipper end is 27 3/4" with tire off ground. Thanks