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Expert Answers about Grand Design Momentum 5W Toy Hauler


  • What Is The Correct Wet Bolt Replacement For The Equa-Flex Trailer Suspension?
  • The Wet Equalizer Bolt with Locknut and Grease Zerk # 126B2 and Bronze Bushing # D014-077-00 can be used to replace the wet bolts that are frozen on your 2020 Grand Design Momentum 351M. The wet bolts on the Momentum were most likely not serviced properly from the dealer/owner of the camper is my guess. If water got into the bushings and caused rust to develop this is what I feel may be causing you to not be able to install grease into the bolt. Typically the grease zerk will be the first...
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  • Shipping Weight and Packaging of Curt Flex Air 5th Wheel Pin Box
  • The Curt Flex Air 5th Wheel Pin Box part # LC369535 has a shipping weight of around 230 lbs. They come inside a box on a pallet.
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  • TorkLift Step Compatibility with 2018 Grand design Momentum 328m
  • The TorkLift GlowStep Revolution Scissor Steps w/ Landing Gear - 4 Steps - 27-1/2" Base - 375 lbs # TLA8004 are a fit for your 2018 Grand Design Momentum 328M. They can be used to replace your current steps if desired. If you have factory SolidSteps then you likely will need to cut a portion of your siding to accommodate the mounting bracket for these steps and will also need the outrigger brackets # LC301704. If you want a step that doesn't require cutting but also will stick out from...
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  • Picking Out Replacement Leaf Spring for 2018 Grand Design Momentum 349M
  • We don't have leaf spring replacements for trailers in our fitguide (yet) and that's because it's not information that RV manufacturers list. So what you have to do is measure the length of your springs now as well as know the axle capacity and you'll be able to pick out the correct springs. One thing we have determined about your 2018 Grand Design Momentum 349M is that it has 7k axles like the part # e64SR that you referenced is for. This is a 24-7/8 inch long spring and currently our...
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  • Fit of Roadmaster RM-2460-2580 Roadmaster Comfort Ride Leaf Spring Suspension Kit
  • The ability of the # RM-2460-2580 Roadmaster Comfort Ride Leaf Spring Suspension Kit to fit without modifications will depend on the existing suspension. This isn't a RV-specific item, the system would be a direct replacement if the RV has 5200-7000 lb capacity axles that are 3 inches in diameter. I've linked to a demonstration video that you might find helpful.
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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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  • Hose for Camco RV and Marine Premium Water Filter
  • Although the exact 12 inch hose is not available separately of the Camco RV and Marine Premium Water Filter # CAM40631, it is simply a standard garden hose connection so what you can do is use the Camco RV Drinking Water Hose # CAM22763. This hose is longer, at 4 feet, but will work as an extension hose.
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  • Depth Needed To Install Lippert SolidSteps In A 2016 Grand Design Momentum
  • The SolidStep Manual Fold-Down Steps # LC791575 are approximately 9" in depth from the threshold stop to the edge of the steps (pictured below). You'll need to measure from the doorstop in the center of your threshold out and see just how much space you have between it and the steps to know if these will fit.
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  • What All Is Needed To Convert A 2021 Tandem 7k Axle Grand Design Momentum 5th Wheel To Disc Brakes?
  • To get your 2021 Grand Design Momentum 349M 5th Wheel toy hauler converted over to disc brakes, it will require a few parts. This is a pretty common upgrade for toy haulers though, so we definitely have everything you need. With that said, I have all the part numbers as well as quantities for everything you will need below. Qty.1 - HydraStar Electric-Hydraulic Actuator w/ Line Kit for Disc Brakes - 1,600 psi # CAR-HBA16-2 Qty.2 - Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Raw...
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  • Cushioned Trail Air pin Box That Fits Grand Design Momentum 349m 5th Wheel Camper
  • Your Grand Design Momentum 349m has a Lippert 1621 pin box on it so the correct Trailair Air Ride 5th Wheel Pin Box is the part # LC158778 that you referenced. Check out the test course video I attached that shows how the cushioning works on the road. You can see how the pin box prevents a lot of shock and movement from being transferred to the tow vehicle.
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  • Can Lippert RV Spare Tire Carrier with Winch # LC159041 Carry Second Spare
  • Yes you could use the Lippert RV Spare Tire Carrier with Winch # LC159041 as a way to carry a second spare on your 2019 Grand Design M toy hauler.
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  • Weight of Rapid Hitch Adjustable Ball Mount Kit # AM3400
  • The Rapid Hitch Adjustable Locking Ball Mount # AM3400 has a total weight (with the hitch ball attachment) of just about 19 pounds. The shank by itself without the hitch balls is only 6 pounds. I have attached a short video review on this product that you can check out as well.
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  • Roadmaster Trailer Suspension Upgrade Kit for 2017 Grand Design Solitude
  • The Lippert Center Point Air-Ride Trailer Suspension Upgrade # LC1565391 will help reduce shocks transmitted into the chassis of a trailer that has a tandem axle double-eye leaf spring suspension, but this kit also raises the trailer height by 2-inches. This is something to consider since raising the trailer's center of gravity can lead to more sway. For this reason I would go with the Roadmaster Comfort Ride kit # RM-2460-2570. This will support and dampen motion of your 7K axles with...
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  • Material of HydraStar Disc Brake Kit & Do They Fit Dexter 7,000 lb Axles
  • The hub as well as rotors are cast iron for the disc brake kit from HydraStar you asked about: - HydraStar Disc Brake Kit w/ Actuator for Triple Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K # HSE7K-TR1 They are dacromet-coated as well to help ensure corrosion resistance. I can verify for you that the HydraStar Kit # HSE7K-TR1 does in fact fit Dexter 7,000 lb axles, as they have the correct bearings (25580 and 14125A) and grease seal (GS-2250DL) for that axle.
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  • Can Correct Track and Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks Fit Together
  • The Correct Track Trailer Alignment and Lift Kit # RR23QX will work with the Roadmaster Comfort Ride Shock Absorbers # RM-2460, but the whole Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks # RM-2460-2580 is designed to fit on a standard leaf spring suspension. If you are wanting to lift the height of your trailer a little as well as install the Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks # RM-2460-2580 then you'll need to cut off your current hangers and...
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  • Replacement Trim Needed for Underside Panel on a 2019 Grand Design Momentum 5th Wheel Toy Hauler
  • Hey Kyle! We have a variety of trim pieces for trailers (see attached link) but since the design will vary from trailer to trailer I'll need some dimensions and possibly some photos to see if anything we carry matches what you're needing to replace.
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  • Roadmaster Comfort Ride Suspension Fit For 2019 Grand Design Momentum 351M
  • I can help you out with the right Comfort Ride system for your 2019 Grand Design Momentum 351M. What you have is a pair of 7,000 lb axles, so the system that will work for you is the following: - Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 7K Trailer Axles # RM-2460-2570 The # RM-2460-2570 is a superb choice for your trailer, as it is going to give you a much smoother, more stable towing experience.
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  • Replacing Clearance Lights On A 2020 Grand Design Imagine 2979RL
  • I can certainly point you in the right direction. Looking at these 2020 Grand Design Imagine campers, the clearance light appears to be very similar to the Optronics # MCL0032ABB. This is a 4" long 2" tall and 1" thick amber clearance light with a black base. We also have it available with a while base # MC32AB. If you can measure one of your clearance lights, you may find that this light is virtually identical. If you find that a different size light is needed, feel free to send me some...
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  • Why Is My Brake Fluid Coming Out Discolored When Bleeding the Brakes
  • If the brake fluid that came out when bleeding the brakes after a disc brake conversion # HSE7K-TR1 came out discolored then there's a contaminant or water in the lines somewhere. The only way to clear it out would be to run more fluid through it to pass all of the contaminant out. You'll want to bleed the brake assembly furthest from the actuator first and work your way closer to the actuator.
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  • What Is the Difference Between the MORryde TV56-129H and MR57RR
  • There is no difference between the MORryde Wall RV TV Mount # MR57RR and TV56-129H. TV56-129H is just MORryde's part number, while the other is our part number for our system.
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