Can 26 inch Long Leaf Spring be Replaced with 25-1/4 inch

Updated 03/31/2025 | Published 01/13/2025

Question:

Can I use a 25.25inch leaf spring to replace a 26inch leaf spring?

asked by: Jason

Expert Reply:

Hey Jason, it's pretty common for replacement leaf springs to be slightly shorter than what they replace as springs tend to stretch/flatten overtime as they wear out so while you are on the right track 3/4 of an inch is a bit too much of a "stretch" (pun intended) so I would not attempt to do use that size.

What axle capacity do you have? I can try and come up with your best option.

Typically between 1/8 of an inch and 1/4 of inch is an acceptable amount of stretch to see.

expert reply by: Jameson C

Robert

3/28/2025

I have a 2020 Momentum 349M. Came with 7000# Dexter axle and 7000# ( part 072-027-02) rated springs and Mor Ryde 3000 equalizer. I don’t haul toys or excess weight but I have broken two leaf springs and destroyed two new tires. I called Dexter and they told me 8000# rated springs (7 leafs) part number 072-079-01 would work and fit fine. The thing about Dexter is they only provide flattened (loaded) measurement which is 26” eye to eye. I have measured my removed old 7000# rated springs and the eye to eye is 5 1/4”. I would say that there is some stretch in that number. Most of the 8000# rated springs that etrailer sells measure 24 7/8, that would mean only 3/8” difference. The big question: will that 3/8 “ difference be a problem. Thank you, Rob

Jameson C.

3/31/2025

@Robert Hey Rob, so all of our leaf springs are measured without a load on them and I found out that the 072-027-02 that you have now is 25-1/4 inches long without a load so that is the length we want to shoot for. For an exact replacement for a 7k axle you would want the part # TRU52FR but we don't have this length for an 8k axle. In that capacity we only have options that are too short.