Does The Amount Of Leaves On A Trailer Leaf Spring Matter?
Question:
i need new leaf springs for my 5th wheel. Im curious how a 4 leaf, a 5 leaf, and a 6 leaf can all be rated at3000 lbs. I have 5 leaf on it now and it is sagging 1.5 inches on the left side. Would a 6 lleaf be better for the long term? I have also seen a 7 leaf rated at 3500 lbs. Would that be better? I have 6000 lb axles.
asked by: Scott R
Expert Reply:
The number of leaves on a leaf spring does not dictate strength or capacity, so as you said, a 3000lb rated leaf spring (6,000lb axle capacity) can have various numbers of leaves since it is up to how the manufacture designed it. I wouldn't look at the 7 leaf spring as having more durability or longer life since that is not how it works. As long as you replace the spring with a spring of the same rating and length, you'll be good to go!
If your current eye to eye measurements are giving you 25-1/8", then the 4-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/8" # e47SR you were looking at will work great. Make sure you are lifting the unloaded trailer up so that the suspension hangs freely; sometimes the springs get stretched and flattened over time, so it's possible you will actually need a slightly longer spring like 5-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/4" Long # e78SR.

Products Referenced in This Question
etrailer Rust-Resistant 5-Leaf Double Eye Spring for 6K Trailer Axles - 25-1/4" Long - Dacromet
- Trailer Leaf Springs
- Double Eye Springs
- 6000 lbs
- 1-3/4 Inch Wide
- 5 Leaf
- 25-1/4 Inch Long
- Dacromet
- etrailer
more information >
Product Page this Question was Asked From
4-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/8" Long
- Trailer Leaf Springs
- Double Eye Springs
- 6000 lbs
- 1-3/4 Inch Wide
- 4 Leaf
- 25-1/8 Inch Long
- Painted
- etrailer
more information >
Continue Researching
- Video: 4-Leaf Double-Eye Spring for 5,200-lb Trailer Axles Spec Review
- Shop: MORryde Suspension Upgrade Kit for Tandem Axle Trailers - 3-1/8" Long Shackle Straps
- Search Results: trailer leaf springs
- Shop: MORryde Suspension Upgrade Kit for Tandem Axle Trailers - 2-1/4" Long Shackle Straps
- Shop: U-Bolt Kit for Mounting 5,200-lb to 7,000-lb, Round Trailer Axles - 7" Long U-Bolts
- Shop: 4-Leaf Double-Eye Spring for 5,200-lb Trailer Axles - 25-1/4" Long
- Shop: 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 26" Long
- Shop: etrailer Rust-Resistant 5-Leaf Double Eye Spring for 6K Trailer Axles - 25-1/4" Long - Dacromet
- Shop: Curved Equalizer for 1-3/4" Double Eye Spring - 7-3/4" Long - 9/16" Hole
- Article: How to Accurately Measure Trailer Leaf Springs
- Video: 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles Spec Review
- Video: All About the 6-Leaf Double-Eye Spring for 7,000-lb Trailer Axles
- Q&A: Replacing Slipper Springs With Double-Eye Springs
- Video: Breaking Down the MORryde Suspension Upgrade Kit for Tandem Axle Trailers
- Video: etrailer VS Dexter Self Adjusting Brakes Comparison
- Search Results: shock absorber kit
- Article: Our Team Picked The Best Camping Gear of the Year - Here Are Their Top Choices
- Video: Detailed Breakdown of the U-Bolt Kit for Mounting 5,200-lb to 7,000-lb, Round Trailer Axles
- Video: Review of the MORryde Suspension Upgrade Kit for Tandem Axle Trailers
- Q&A: Should Leaf Spring Capacity Match Trailer Weight or Axle Weight for Best Ride Comfort
- Search Results: trailer suspension parts
- Search Results: road armor equalizer
- Search Results: trss238
- Q&A: How to Measure a Trailer Leaf Spring
- Search Results: leaf spring
- Search Results: how to measure leaf springs
- Q&A: Differences Between Single and 5-Leaf Leaf Springs for 6000 Lb Rated Trailer Axle
- Q&A: Converting from Double-Eye Leaf Springs to Slipper Springs on my Triple Axle Trailer
- Q&A: Replacement Braking Assemblies For Dexter 12x2 Brakes
- Q&A: Comparing Equa-Flex and Road Armor Equalizers For 2000 Forest River WIldwood W/ 5200lb Axles