Picking Out Replacement Leaf Spring for 2018 Grand Design Momentum 349M

Question:

Hello, I have a 2018 grand design momentum 349m that I need to replace the leaf springs and wet bolts on but I don’t see them listed under the trailers parts list. Do you happen to know which parts I need?

asked by: Daniel S

Expert Reply:

We don't have leaf spring replacements for trailers in our fitguide (yet) and that's because it's not information that RV manufacturers list. So what you have to do is measure the length of your springs now as well as know the axle capacity and you'll be able to pick out the correct springs.

One thing we have determined about your 2018 Grand Design Momentum 349M is that it has 7k axles like the part # e64SR that you referenced is for. This is a 24-7/8 inch long spring and currently our only 7k axle option. This is a very popular leaf spring length in the higher axle capacities so I would anticipate this being the correct fit. Then for wet bolts we have the # 126B2 which is the standard length and diameter of trailer bolts and comes with a nut.

expert reply by: Jameson C