Suspension Upgrade Recommendation for 2019 Grand Design 351M
Updated 11/22/2021 | Published 11/21/2021 >
Products Featured in This Question
Question:
What would be the best suspension upgrade for my 2019 Grand Design 351M? Ultimately 8k axles would be the best but Im not sure I can afford it. The Roadmaster comfort-ride looks promising as does the Center point air ride suspension. I will be doing it myself to save $. Thank you for your help.
asked by: Greg C
Expert Reply:
If the suspension of your 2019 Grand Design 351M is currently in good working order but you want to improve what you have by making the ride quality smoother you could go with just the shock portion of the Roadmaster Comfort Ride with part # RM-2470. You'd want to measure the diameter of your axles though. If they are 3-1/2 inch like what most 8k axles fit then the correct kit is the # RM-2470. If they instead are 3 inch you'd want the part # RM-2460.
Product Page this Question was Asked From
Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks - Tandem 8K, 3-1/2" Axles
- Trailer Suspension Parts
- Equalizer Upgrade Kit
- Leaf Spring Replacement System
- Suspension Kits
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- 8000 lbs
- Round Axle - 3-1/2 Inch
- Tandem Axle
- Roadmaster
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Triple 7K Trailer Axles
- Shop: Replacement U-Bolt with Nuts for 3" Round Trailer Axles - 1/2" Diameter
- Shop: Replacement U-Bolt Axle Mounting Hardware Kit - 3" Axles
- Shop: Hydrastar Electric Over Hydraulic Actuator Kit for Disc Brakes - 1,600 psi
- Shop: Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Dacromet - 8,000-lb Dexter
- Q&A: Torque Specifications for Redline U-Bolt Kit APUBR-1
- Q&A: Torque For MORryde U-Bolts for 5,200-lb to 7,000-lb Round Trailer Axles MR66ZR
- Shop: Replacement U-Bolt with Nuts for 3" Round Trailer Axles - 1/2" Diameter - Zinc Plated
- Shop: 3" Round Trailer U-Bolts (Qty 2)
- Video: HydraStar Kit Installation - 2020 Jayco Seismic 5W Toy Hauler
- Q&A: Recommended Disc Brake Conversion Parts for a 5th Wheel Trailer w/ 8,000 lbs Axles
- Search Results: triple axle suspension kit
- Search Results: roadmaster
- Search Results: 02475
- Search Results: timken
- Video: Feature Review Kodiak Synthetic Bearing Oil for Oil Bath Hubs
- Video: All You Need to Know About the Kodiak Synthetic Bearing Oil for Oil Bath Hubs
- Search Results: 8k axel
- Video: Installation: Kodiak Disc Brake Kit on a 2021 Vanleigh Beacon Fifth Wheel
- Video: Timken Hi-Temp Red Grease for Disc and Drum Brakes Feature Review
- Q&A: Wet Bolt Recommendation For the Roadmaster Comfort Ride Leaf Spring Suspension Kit
- Q&A: Comparing Benefits of Greased Hubs vs Oil Bath Hubs
- Q&A: What is the Correct Brake Fluid to Use in Hydrastar Electric Over Hydraulic Brake Actuators
- Q&A: 7000lb Axle Disc Brake Conversion
- Video: Detailed Breakdown of the U-Bolt Kit for Mounting 5,200-lb to 7,000-lb, Round Trailer Axles
- Video: Installing the Dexter U-Bolt Kit on a 2018 Grand Design Reflection Fifth Wheel
- Search Results: goose box
- Search Results: hub oil

