Which Roadmaster Comfort Ride System for 2021 Grand Design 303RLS with 5,200 lb Axles
Updated 09/08/2025 | Published 06/13/2025
Question:
Hello, Could you help me choose the correct Roadmaster Comfort Ride kit for a 2021 Grand Design 303RLS? I’m not sure if the 5k kit or 6k is the right one to ensure a better ride and not a more harsh ride. I believe the factory springs are 2600lbs and the axles are 5200. Thanks you!
asked by: Matt
Expert Reply:
Hey Matt, since you have 5,200 lb axles the correct Roadmaster comfort ride system would be the part # RM49NQ which is for 6k axles. For ride quality and safety it's best to have a little more suspension support than needed than not enough.
Product Page this Question was Asked From
Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 6K Trailer Axles
- Trailer Suspension Parts
- Equalizer Upgrade Kit
- Leaf Spring Enhancement System
- Suspension Kits
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- 6000 lbs
- Tandem Axle
- Roadmaster
more information >
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Jameson C.
9/8/2025
Hey Matt, did the Roadmaster Comfort Ride system for the 6k axles work out for your Grand Design? I’d love to hear your outcome because it could give others confidence when ordering replacements.