How to Select Correct Replacement Trailer Leaf Springs
Question:
98 Sunnybrook M-30FBS, GVWR 8600 lbs. 2 axles @ 3inch dia., 4 leaf springs, 26+/- fixed hanger to equalizer shackle under load. Im assuming your e44SR is the correct replacement, any thoughts?
asked by: Eric R
Expert Reply:
The best way to measure a trailer spring for purposes of selecting a replacement is to remove it completely from the suspension. It is also important to note that leaf springs will tend to elongate over time as they wear. You might pull a well-worn spring from your trailer and find its eye-to-eye length is actually 1/2-inch to 3/4-inch longer than when it was new (and also longer than the correct replacement).
For instance, part # e44SR that you referenced is a 4-leaf double-eye spring 25-1/4-inches long that is rated for use with 5K axles. Your axles should have a plate or sticker that tells you their weight rating, which is likely to be 5000- or 5200-lbs based on the trailer's GVWR. Based on the age of your trailer it is quite likely that these are in fact the correct springs to use as replacements. Always replace leaf springs in pairs to ensure the trailer tracks correctly and to avoid uneven tire wear.
Product Page this Question was Asked From
4-Leaf Double-Eye Spring for 5,000-lb Trailer Axles - 25-1/4" Long
- Trailer Leaf Springs
- Double Eye Springs
- 5000 lbs
- 1-3/4 Inch Wide
- 4 Leaf
- 25-1/4 Inch Long
- Painted
- etrailer
more information >
Continue Researching
- Search Results: 5 on 4 3/4
- Search Results: st205/75r15
- Q&A: Replacement For 5,000 lb 25-5/8 Inch Leaf Spring
- Shop: Shackle Bolt with Locknut for Double-Eye Springs - 3" Long
- Search Results: 23 leaf spring
- Video: TruRyde Trailer Suspension TRSS238 Review
- Video: Kenda Tires and Wheels - Tire with Wheel - AM32424 Review
- Search Results: spring seats
- Shop: Steel Mod Silver Trailer Wheel - 15" x 5" Rim - 5 on 4-3/4
- Shop: 4-Leaf Double-Eye Spring for 5,000-lb Trailer Axles - 25-1/4" Long
- Search Results: 166081
- Shop: Shackle Bolt For Double-Eye Springs - 9/16" Diameter - Plain - 3" Long
- Shop: Nylon Bushing - 1/2" Inner Diameter, 11/16" Outer Diameter - 1-3/4" Long
- Shop: 3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" Long
- Shop: Karrier ST205/75R15 Radial Trailer Tire with 15" Silver Mod Wheel - 5 on 4-3/4 - Load Range C
- Article: How to Accurately Measure Trailer Leaf Springs
- Q&A: Leaf Spring Lengths Available for Use with Dexter Trailer Axle Rated for 3500-lbs
- Q&A: Will Double-Eye Springs # PR4 Fit 2004 Cardinal Travel Trailer w/ Rockwell American 93103 Springs
- Q&A: Recommended Leaf Spring Replacements for 2018 Grand Design Imagine 3170BH with 4400-lbs Axles
- Search Results: leaf spring
- Search Results: rv leaf spring replacement
- Video: Universal Group Trailer Suspension - Leaf Spring Suspension - SP-210275 Review
- Q&A: Determining Correct Axle Upgrade For 2018 Grand Design Imagine Travel Trailer
- Q&A: Correct Replacement Leaf Springs for Grand Design 28BH
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Article: Trailer Tire Sizing
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Article: Trailer Wiring Diagrams
- Article: Most Popular Wheel Bearings