What to Do if SumoSprings For 2023 Ram Promaster is Too Harsh
Updated 12/29/2025 | Published 12/07/2025
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Question:
2023 Ram ProMaster 159 Ext. Conversion, GVW 9200lbs. Yellow Sumo Springs, Hugh improvement, until I tried to sleep in rear while wife was driving. OMG, almost threw me out of bed. Also screws coming loose in rear from vibration. No space between spring and frame must be the problem. Using one spacer. Can I remove spacer to get some distance between spring and frame? Or try something different?
asked by: Rudy V
Expert Reply:
Hey Rudy, if I were in your situation I would try removing a spacer to see if that helps. The real struggle with suspension enhancement is that they typically do create a rougher ride quality and are hard to dial in.
The ONLY kit we can recommend for your 2023 Ram ProMaster 3500 that will actually improve ride quality and everything else is the Roadactive kit part # RAS77VR. If you can't find the sweet spot with the SumoSprings this would be for sure what I would recommend for your ProMaster and you'll be super happy with it.
Product Page this Question was Asked From
SumoSprings Solo Custom Helper Springs - Rear Axle
- Vehicle Suspension
- Towing/Load Leveling
- Bump Stops
- Suspension Only
- Standard Duty
- Rear Axle Suspension Enhancement
- SuperSprings Intl
more information >
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Jameson C.
12/29/2025
Hey Rudy, how did things go after you removed the spacer on your ProMaster’s SumoSprings? Did that help smooth out the ride while you were in the back? Your update could make it easier for others trying to fine-tune their suspension setup.