Will 7-Leaf Double-Eye Spring for 8,000-lb Trailer Axles Fit 2021 Grand Design Momentum 320G

Updated 04/01/2024 | Published 03/31/2024

Question:

Would these work on a 2021 grand design momentum 320g? I’m looking to upgrade my springs since it looks like the trailer is sitting low on the current springs

asked by: Travis

Expert Reply:

Grand Design does a great job listing the parts for their trailers but the one thing they don't list individually is the leaf springs. I can see that you have 7k axles on your Momentum 320G but you will have to measure the length to see if it matches. When replacing leaf springs you typically want the same capacity and the definitely the same length.

The # DX74XR is a little higher in capacity at 8k which is what you're looking for but we don't know if the length works. These leaf springs are 24-7/8" long spring eye to spring eye. You will need to get the same measurement on your current leaf springs. If they have flattened out a little bit from wear then you also want to account for that. If your current leaf springs match # DX74XR then they will work for an upgrade.

I have attached a help article below which covers how to measure leaf springs for your reference.

expert reply by: Robin H