How to Determine Correct Replacement Double-Eye Leaf Springs For 5,200 lb Axles on 3-Axle Trailer

Question:

Leaf Spring Replacement. We have a 2008 Forest River Sierra 40SPTS-triple axle toy hauler with 5200 pound axles?. We would like to replace proactively. How do we know which to purchase? Wed also like to upgrade the part that is shackled to them. Any suggestions is greatly appreciated.

asked by: Lisa L

Helpful Expert Reply:

To determine how to replace double-eye leaf springs, what you'll need to do is measure the length from center-to-center of the spring eye, keeping in mind that leaf springs elongate over time, so you'll want to account for that by getting ones a bit shorter than the current springs you have.

For example, if your center eye to center eye measurement was around 24-1/2 inches you could use the 6-Leaf Double-Eye Spring for 5,300-lb Trailer Axles - 24-7/8" Long # e76SR.

Or if you had a measurement in the range of 25-1/2 inches you could use the 6-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 26" Long # e94SR.

I have added a link below to our selection of properly rated double-eye leaf springs for you which have different center-eye to center-eye measurements. Then to upgrade the parts shackled to them you can use a suspension upgrade kit which simply depends on how long your shackle straps are, the MORryde Suspension Upgrade Kit for Triple Axle Trailers - 3-1/8" Long Shackle Straps # MR26ZR or 2-1/4" Long Shackle Straps # MR86ZR.