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... view full answer...
I checked with the manufacturer and the tiny screw you're seeing is a set screw. You will use an Allen wrench/key to remove this. I'm attaching a picture with a set of installation instructions for you to refer to when you're replacing the MaxxFan Lift Motor # MA10-20270 . We don't have the new/updated instructions available, but where it refers to a nut holding the blades on to the motor shaft, this is now a set screw like you're seeing. All of the other steps will remain the same. view full answer...
The Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Auto Latch - Lippert 1621/1621 HD - 25K Item # GY66FR is designed to replace Lippert 1116, 1621, 1621 HD, 1716, Fabex 665, and M&M 665 5th-wheel pin boxes. As long as your pin box on your 2017 Grand Design Momentum 399th matches one of the above then it is compatible. view full answer...
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... view full answer...
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. view full answer...
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. view full answer...
I reached out to Hydrastar and they are very familiar with disc brakes on your 2018 Grand Design Momentum toy hauler. They said Grand Design typically gets their axles with 9/16" studs of which we only have the Hydrastar Disc Brake Kit w/ Actuator for Triple Axle Trailers # HYD54FR you found. These have the integral hub/rotor selection and we do not have any slip on options for the 9/16" studs. The studs which come on these hubs are going to be long enough for your factory wheels. view full answer...
The Rhinobox was definitely an unpopular choice for manufacturers to go with so swapping it out with the MORryde Cushioned 5th Wheel Pin Box for 18K to 21K Trailers w/ Lippert Rhino # MR55QR would definitely give you a major improvement in ride quality.
That being said, a 2022 Grand Design Momentum 351MS has a GVWR of 16,800lbs so you would want to use the MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert Rhino # MR83QR instead. The internal spring for this pin box... view full answer...
Yes, that is correct. 90°F to 96°F is completely normal for your Cooper tires to be at. As far as tire pressure goes, as long as your tires are at 20%-25% of what the max tire pressure is supposed to be, you're good to go.
If you're able to let me know what tires you specifically have, I would be happy to let you know a definitive answer. view full answer...
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. view full answer...
While we do have an option for you to get a smoother, more comfortable ride for your 2017 Grand Design Momentum 399TH, the Center Point # LC1565401 is going to raise your trailer by 2 inches, and there isn't any alternative method of install or anything that won't affect your ride height. So instead, what I recommend are shock absorbers from Roadmaster:
- Roadmaster Comfort Ride Shock Absorbers for Triple Axle Trailers # RM-2460-3
These are the right size for your triple-axle '17 399TH,... view full answer...
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... view full answer...
While the Aluminum Liger Trailer Wheel # LH39FR does not carry a maximum pressure rating the included valve stem is rated for 110psi. You will need to ensure that this is not lower than the maximum pressure rating for the tire you intend to use.
Here are the tires we carry I recommend using depending on your weight capacity and size needed.
Karrier ST235/80R16 Radial Trailer Tire - Load Range E # AM10248 (90psi)
Karrier ST235/85R16 Radial Trailer Tire - Load Range E # AM10295 (95psi)
Karrier... view full answer...
The length I'm seeing for a 2021 Grand design Momentum 395MS Fifth Wheel Toy Hauler is 43' 8" so the only compatible cover available for you is the Classic Accessories PermaPRO Deluxe Extra Tall 5th Wheel Cover or Toy Hauler Cover # CA80-299-203101-RT.
This cover fits fifth wheels 41'- 44' in length and has adjustable front and rear tension panels and elasticized hem corners to provide a snug fit. The zippered panels allow access to the RV doors and storage compartments for easy access... view full answer...
The information I found says that your 2022 Grand Design Momentum 395MS 5th Wheel Toy Hauler has a 1621HD pin box. That would make the Trailair Flex Air 5th Wheel Pin Box # LC369535 the correct pin box for you.
A Portable Air Compressor # BDW41002 is good to keep with the 5th wheel so that you can make adjustments to the air bag when needed so the pin box rides at the correct height. view full answer...
It looks like a 2021 Grand Design Momentum 5th Wheel Toy Hauler could have come with either 7,000 lb or 8,000 lb axles. I have attached the correct bearing kits and braking assemblies for each of these options below.
7,000 Lb Axle:
Dexter Electric Trailer Brake Kit part # 23-464-465
Axle Bearing Kit part # BK3-210 (2.125" Seal)
Axle Bearing Kit part # BK3-200 (2.250" Seal)
8,000 Lb Axle:
Dexter Electric Trailer Brake Kit part # 23-434-435
Inner Bearing part # 25580
Outer Bearing part... view full answer...
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... view full answer...
Yes, the Trailair Flex Air 5th Wheel Pin Box part # LC369535 will replace the Lippert 1621 Pin Box on your Grand Design Momentum 381M. The Trailair Flex Air will provide a dramatic improvement in overall ride quality as well as reducing the amount of wear and tear on both the vehicle and trailer. view full answer...
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. view full answer...
Go To Results