Expert Answers about Grand Design Momentum 5W Toy Hauler

• Picking Out Lippert Ground Control 3.0 6 pt or 4 pt for 2015 Grand Design Reflection 337RLS
• With the Ground Control systems the rear most jack install 1 foot behind the rear most axle hanger. Use the 4 point system if there will be 20' or less between the center of the landing gear footpad and the center of the rear jack footpad. Use the 6 point if the distance would be greater than 20 feet. I attached two pictures to this page that show how to measure to locate where the jacks of the 4 point Ground Control part # LC358590 you mentioned install as well as the 6 point version...
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• Gen Y Gooseneck Adapter Pin Box -VS- Reese Gooseneck Air Ride Pin Box
• Either, the Reese # RP94720 5th Wheel to Gooseneck Air Ride, or the Gen Y # 325-GH-8045 Shock Absorbing 5th Wheel to Gooseneck Adapter Pin Box, will mount onto the side wings of your Dutchman trailer as all three utilize the 1621 pin box bolt pattern. I have included dimensional drawings for each of these pin boxes and you can see that they are nearly identical – so there will be no disadvantage in that respect. Neither of these pin boxes will touch the inside wall of the truck bed, even...
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• Which Flex Air Pin Box Fits 2022 Grand Design Momentum 351 MS
• Since we know your 2022 Grand Design Momentum 351 MS has a Lippert 1621 pin box on it the Curt Flex Air part # LC369535 that you referenced is a fit for it. This is also the best cushioned pin box option that cushions vertical and horizontal movement.
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• Best Mud Flap Setup for Protecting Front of Toy Hauler that is being Flat Towed
• A set of Rock Tamers like the part # ERT00108 for a 2 inch hitch or part # ERT00110 for if you have a 2-1/2 inch hitch are going to be your best option to protect your 2019 Grand Design Momentum from rocks as you are travelling. These are really wide and will do the best job preventing your toy hauler from getting scratched on the highway. I attached a picture of what these look like installed as well as a review video that shows more details as well.
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• How To Choose the Correct MORryde CRE3000 Rubber Equalizers
• The MORryde CRE3000 Rubber Equalizers are a great upgraded equalizer option for any trailer. They are cushioned so they will do a great job of absorbing road shock and providing a smoother ride. In order to choose the correct ones you'll need to measure your axle spread (on center). If you have 33" then use part # MR87ZR but if you have 35" then use part # MR27ZR.
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• SuperSprings SumoSprings For a 2021 Grand Design Momentum 395M 5TH Wheel Toy Hauler
• I recommend using the SumoSprings Trailer Helper Springs # SS26MV on your 2021 Grand Design Momentum 395M. These springs are rated for use on axles with a capacity of 5,000-8,000lbs and are mounted below the leaf springs. Your Momentum has three 7,000lbs axles that are mounted below the leaf springs. It is a good idea to verify that the springs will fit between your springs and frame properly. The SumoSprings are 5" tall and 4" in diameter. You will want to verify that they will fit and...
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• Which SumoSprings Kit Fits 2014 Grand Design Momentum 385TH
• Since your 2014 Grand Design Momentum 385TH has 8k axles the correct SumoSprings kit would be the part # SS26MV for if your axles are under your leaf springs or part # SS33HR if they are above instead.
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• Tire Pressure Monitoring Systems For Preventing Tire PSI From Reaching Dangerous Levels
• I recommend using a system like the TireMinder i10 TPMS for your 2018 Grand Design Momentum 5th wheel toy hauler. The TireMinder has a system with either 4 Sensors # TM89FR or 6 Sensors # TM29FR. The sensors are capable of detecting both tire pressure and temperature while you are driving. This will help you to set limits for both the pressure and tire temperature to reduce the chance of having a blowout in the future. A tire will typically gain around 1 psi of pressure with a temperature...
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• Recommended Upgrade for Equa-Flex Cushioned Equalizers
• As with any rubber equalizer, they can and will break down over time. That said, the Dexter E-Z Flex Suspension Kit comes with built-in zerk fittings, heavy duty shackles, and a five year warranty unlike the Equa-Flex Cushioned Equalizers which only have a one year warranty and no way to lubricate. Therefore, the Dexter E-Z Flex Suspension Kit will be a good upgrade option, part # K71-653-00 for 35" spread or part # K71-652-00 for a 33" spread.
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• Tonneau Cover and Bed Mat Recommendation for a 2019 Chevy Silverado 1500 5-3/4 Foot Bed
• The tonneau cover and bed mat combo I recommend for a 2019 Chevy Silverado 1500 with 5-3/4' bed is the BAKFlip MX4 Hard Tonneau Cover part # BAK448130 and BedRug Custom Truck Bed Mat part # BMC19CCS. The BAKFlip MX4 is one of my favorite options on the market because it has a very clean, flush look once installed and it is very durable so much so that you can even place items on top (up to 400 lbs). The BAKFlip MX4 is also very easy to install. The BedRug Custom Truck Bed Mat will pair...
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• Suspension Upgrade Recommendation for 2019 Grand Design 351M
• 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.
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• Can the Mounting Post On the B&W Companion Be Extended To fit a Recessed Gooseneck?
• I do have a couple options that may work for you, but the post on your B&W Companion is not extendable. With that being said, the Replacement Base for B&W Companion Flatbed 5th Wheel Trailer Hitch # BWRVB3055 will work with your pre-existing Companion head ( # BWRVC3006 ) and is rated for up to 22,000 pounds. The base of this option will measure 18 inches by 18 inches, so you will need to measure to make sure it will fit. If your space is under that, the only other option will be the...
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• Bike Rack Solution for Carrying E-Bikes at Rear of Fifth Wheel Trailer
• You could use the Lets Go Aero V-Lectric FAT PRO Bike Rack for 2 Electric Bikes - 2" Hitches - Wheel Mount Item # LGA77FR. This has a high weight capacity bike rack that can be used at the back of a fifth wheel. It will only touch your bikes at the tires too so your step through frame won't matter either. It will even work if your bike has fenders. It can accommodate bikes up to 75 pounds with tire widths up to 4.5". Check out the attached video to see this unique rack in action.
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• Recommended Way to Add Disc Brakes to 2020 Momentum 376THS
• The first thing you'd want is the Kodiak Disc Brake Kit # K2HR79E for each axle. This is a 7k kit with an oil bath dust cover that fits your current spindles and also is compatible with your wheel size. For bearings you'd need to order the # 25580 and # 02475 separately as well as the seal # 10-63 as they are not included. Since you have a triple axle trailer you'd need three of the disc brake kits and 6 each of the bearings and seals. For an actuator kit the best option is the Hydrastar...
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• Circuit Tester Recommendation thats Designed to Test 7-Way of Trailer
• For a tester that allows you to test the 7-way of your truck all you'd need is the part # 6562 which plugs right in and will tell you which circuit is being activated.
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• How to Level Trailer that Sits Nose High After Adjusting Hitch Height for Bed Rail Clearance
• Ideally your 5th wheel trailer sits as level as possible and also there's at least 6 inches of clearance between the overhang of the trailer and the bed rails of the truck. In a situation like yours where having the needed bed rail clearance causes the trailer to sit nose high you would have to lift the trailer suspension, or if the truck happens to have a lift kit you'd need to remove it and go back to stock ride height. For a tandem axle trailer like yours we do have a 2-1/4 inch lift...
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• How Many MORryde X Factor Crossmembers Does Triple Axle Trailer Need
• For a triple axle trailer you would need four of the MORryde X-Factor Crossmembers # MR33WR. These are compatible with the CRE30000 equalizers you have as well.
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• Best Parts For Electric Over Hydraulic Brakes on 2019 Grand Design Momentum 351M
• We can definitely put together a complete kit so you can add electric over hydraulic brakes to your 2019 Grand Design Momentum 351M tandem-axle trailer. You'll need to add four parts to your trailer - the brakes, actuator, brake lines, and breakaway kit; the best for that are the following: - (Two of these) DeeMaxx Disc Brakes - 13" Hub/Rotor - 8 on 6-1/2 - Maxx Coat/Stainless # DE88YR - Hydrastar Vented Marine Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi # HS381-8067 -...
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• Replacement 50 Amp Power Connectors for RV Use on 2016 Grand Design 303 Reflection
• The Furrion Replacement Connector for RV Power Cord # 381684 that you referenced is a female 50 amp RV connector replacement like it sounds like you are in need of. If you also needed a replacement socket the part # A10-50INVP would be what you'd need. The male and female designations for these connectors is a bit confusing as the socket side which you'd normally consider as female is the male side due to the prongs and the female side is the plug.
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• Which Roadmaster Comfort Ride Leaf Spring Kit W/Shocks For 2021 Grand Design Momentum Toy Hauler
• I would be happy to help! Starting with the first question you are correct that due to the increased in demand in any and everything trailer related there has been issues getting replacement leaf springs, but I have not heard of any leaf spring failures caused by this. We do have a Roadmaster Comfort Ride Leaf Spring Suspension Kit W/ Shocks for 2021 Grand Design Momentum 5th Wheel Toy Hauler with triple 7K axles. You will need the # RM-2460-2570-3. These kits are great as they improve...
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