Upgrading Leaf Springs on a Trailer with a 3500 Pound Axle
Updated 02/03/2025 | Published 02/14/2018
Products Featured in This Question
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 >
Continue Researching
- Search Results: trailer suspension parts
- Shop: 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 26" Long
- Search Results: leaf spring bushing
- Search Results: dexter trailer leaf springs
- Search Results: 4000 lbs trailer leaf springs
- Search Results: trailer brakes controller
- Search Results: roof sealant
- Search Results: dexter heavy duty suspension kit
- Shop: 4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 25-1/4" Long
- Shop: 4-Leaf Double-Eye Spring for 5,000-lb Trailer Axles - 25-1/4" Long
- Shop: 3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 25-1/4" Long
- Q&A: Can I Use Heavier Rated Leaf Springs on Trailer Without Causing Damage
- Shop: Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs
- Q&A: What is Difference Between Grease Seals RG06-010 and 34823
- Shop: Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs
- Article: How to Accurately Measure Trailer Leaf Springs
- Shop: U-Bolt Kit for Mounting 3,500-lb, Round Trailer Axles - 5-1/2" Long U-Bolts
- Shop: Brake Controller
- Shop: RV Roof Membrane
- Q&A: Can a 4-Leaf Trailer Leaf Spring be Used in Place of a 3-Leaf Spring
- Q&A: How To Find Correct Replacement Leaf Spring For Trailer With Single 3500lb Axle
- Q&A: Replacing 5-Leaf Spring with 1-Leaf Double-Eye Spring on Boat Trailer with Tandem 6,000-lb Axles
- Q&A: How to Pick Leaf Springs for a Trailer
- Video: Lippert Bolt-On Shock Kit w/ Heavy Duty Gas Shocks Review
- Q&A: Can I Upgrade My 3,500 lb Leaf Springs To 5,000 lb Springs If The Measurements Match?
- Video: Breaking Down the 4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles
- Video: In-Depth Review of the Timken Grease Seal
- Article: How to Tell the Weight Rating of a Trailer Axle
- Shop: Suspension Enhancement
- Video: Review of CE Smith Trailer Suspension Parts - Spring Seat Typical 3500lb Trailer Axle - CES88WR
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