Expert Answers about Grand Design Momentum G-Class TT Toy Hauler

• Replacement Bearings and Seals for 7,000 lb Axles on Toy Hauler
• From the information I was able to see online it looks like your 2019 Grand Design Momentum 381M has 7,000 lb axles which means you should be able to use Grease Seals 10-36 (pair) # RG06-070 that you were looking at. You will want to confirm this on your end though as well. The 10-36 grease seals have an inner diameter of 2.250" and an outer diameter of 3.376" so if you take a digital caliper and measure your spindle and current hub/drums where the seal rides you'll be able to confirm...
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• Replacement Leaf Spring and Shock Absorbers for 2020 Grand Design Momentum Toy Hauler
• It appears you have 6K tandem axles. We have a few options for the replacement leaf spring but you will need to measure your spring center of the bolt to center of the opposite bolt to get the correct fit. I've linked the options for you. Then I do have the Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 5,200-lb to 7,000-lb Axle # RM-2460 which are my recommendation for your trailer to improve ride quality.
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