Suspension Upgrade Recommendation for a 2021 Momentum Toy Hauler 350G
Updated 02/03/2026 | Published 07/02/2024
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Question:
I have a 2021 350g momentum toy hauler with the cre3000 Moryde equalizer. I’m wanting to upgrade to something better since my bushings have play as well as new leaf springs since mine are sagging. Not sure if I could go up to 4k springs or stay 3500 without making it too tall. Tandem axles with 35” spread. 1-3/4” leaf springs that are 25-3/4 long 2-1/4” HD wet bolt kit, and a 3” axle tube. Could you recommend some upgrades. Thank you
asked by: Travis H
Expert Reply:
Hey Travis, thanks for reaching out!
For standard replacement parts I recommend using the 3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles # e57SR and the MORryde Suspension Upgrade Kit for Tandem Axle Trailers # MR46ZR. The leaf spring is 25-1/4" long, but if you measured your leaf spring length with a load on the spring then that would explain why you're measuring a little longer.
For more of an overhaul I recommend checking out the Timbren Silent Ride Suspension for Tandem Axle Trailers # TSR14K35T01. This replaces your entire suspension and just has you bolting your current axles to this kit. Instead of using leaf springs this uses the Timbren rubber springs similar to what you'd find in one of their vehicle kits.
I'm attaching a review video of the Silent Ride kit for your reference.
Product Page this Question was Asked From
3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 25-1/4" Long
- Trailer Leaf Springs
- Double Eye Springs
- 9/16 Inch Eye
- Nylon Bushings
- 4000 lbs
- 1-3/4 Inch Wide
- 3 Leaf
- 25-1/4 Inch Long
- Standard Grade
- etrailer
more information >
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Robin H.
2/3/2026
Hey Travis, how did things turn out with the suspension upgrades on your Momentum toy hauler? Did the 4,000‑lb leaf springs or the Timbren Silent Ride setup give you the ride height and support you were looking for? Your update could make it easier for the next person planning a similar upgrade.