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  1. #1
    Seasoned Camper
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    May 2017
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    Middle TN
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    351M-R Basement Mods done.

    Basement mods finally done on our 351M-R. Took longer than I wanted, but was trying to fit it in between my little dude's baseball games/cub scouts/etc, work and wife's plans. It also gave me a chance to fully inspect the rats next of plumbing, electrical & HVAC lines in the basement. You can definitely spend a lot of time attempting to clean that up.
    • Replaced WFCO converter with a Progressive Dynamics PD1961ALV to maximize charge on the Battleborn LiFePo4 batteries when on shore power.
    • Replaced the plastic water heater check valve for a brass one and the two plastic 90-deg Pex fitting to the water heater with brass ones as well.
    • Added 4 water leak detectors in basement area.
    • Straightened out the basement wall & added plexiglass to the back. Had to move the transfer switch for the main wall and needed 61in of length so turned water pump 90deg (able to use same screw holes) and cut down two of the big looping water lines with brass 90's.
    • Installed a 26x60 MorRyde slide-out tray in newly squared off basement.

    Click image for larger version. 

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    2022 Momentum 351M-R
    2019 Ford F450 Platinum CC 6.7L Powerstroke FX4; Truck Covers USA American Work Tonneau; B&W 25K hitch; Airlift 5000 Ultimate+ w/WirelessAir; ZRoadZ back-up lamps
    Gone: 2018 Reflection 28BH; 2017 Ford F350 Platinum CCSB 6.7L Powerstroke FX4; 2015 GMC Denali 2500HD CCSB Dmax
    Gone but still in the family: 2004.5 Chev 2500HD CCSB LTZ Dmax

  2. #2
    Seasoned Camper Cannon07's Avatar
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    Jun 2020
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    Palmetto, Ga.
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    Nice job. Done the same in ours except the side outs.
    2021 351MR
    2017 Jayco 377rlbh (sold)

  3. #3
    Setting Up Camp 530_Josh's Avatar
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    Sep 2017
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    Nice clean work!
    2004 Volvo VNL 15L Cummins 600hp/2250tq 12spd Automatic
    2018 Solitude 310GK-R Full Paint mounted on 52ft PJ Low deck
    2020 Ford Raptor or RockCrawler mounted on the deck ;-)


  4. #4
    Setting Up Camp
    Join Date
    Oct 2021
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    Would a 28x60” slide have fit? Just waiting to receive my 381M and I’m considering my options. Great mod BTW!


    Sent from my iPad using Tapatalk
    2022 Solitude 346FLS
    2018 GMC SLT SRW SB Diesel
    Canadian born and raised

  5. #5
    Seasoned Camper
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    The limitation is the basement door. The 26in wide model is as big as you can go to get through that door on a 351M. Given the 381M is the larger garage version of the 351M... it won't fit unless they have some sort of design change in the meantime.
    2022 Momentum 351M-R
    2019 Ford F450 Platinum CC 6.7L Powerstroke FX4; Truck Covers USA American Work Tonneau; B&W 25K hitch; Airlift 5000 Ultimate+ w/WirelessAir; ZRoadZ back-up lamps
    Gone: 2018 Reflection 28BH; 2017 Ford F350 Platinum CCSB 6.7L Powerstroke FX4; 2015 GMC Denali 2500HD CCSB Dmax
    Gone but still in the family: 2004.5 Chev 2500HD CCSB LTZ Dmax

  6. #6
    Left The Driveway
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    Jan 2021
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    Nicely done, I want to do that to my 351M.

  7. #7
    Seasoned Camper RoJoSo's Avatar
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    Nov 2019
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    Lehigh Valley PA
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    My to do / wish list has gotten bigger
    2020 Grand Design Reflection 303RLS 5th Wheel
    2013 Ford F250 Super Duty, King Ranch, 6.7 Diesel, HD Tow Package
    B&W Companion Slider RVK3405
    Timbren Rear Suspension Enhancement System R250SDG
    Titan 50 Gallon Fuel Tank

  8. #8
    Long Hauler
    Join Date
    Jul 2021
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    Platte City, MO
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    I hope you like yours more than I did mine. I had one installed by the PO on a Montana Big Sky, and I really thought it would be great. I never did grow to like it, I always felt like it ate more room, than the convenience, or rather, the perceived convenience rated. I definitely don't feel the need with the smallish basement on the 351. Most of the stuff stored in the basement is too bulky to really take advantage of a slide. In our case anyway. Diff'rent strokes...
    Howard and Peggy
    2019 Momentum 351M, and 2018 RAM Cummins dually 6-speed.
    His: 1999 Honda Interceptor
    Hers: 2013 Spyder ST-S

  9. #9
    Seasoned Camper Cannon07's Avatar
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    Jun 2020
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    Another thing i did was move the vac close to door so it was easy to reach and no cargo would hit and turn it on while bouncing down the road.
    Attached Thumbnails Attached Thumbnails IMG_20210301_175958783.jpg  
    2021 351MR
    2017 Jayco 377rlbh (sold)

  10. #10
    Long Hauler
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    Jul 2021
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    Platte City, MO
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    That is an excellent move. Did you have trouble maneuvering the hose to keep it connected? Mine does get turned on every once in a while. But Peggy really likes that vacuum under the steps. Come to think of it, that is probably closer to the actual stairway where it is now. I may have to add that to my list.
    Howard and Peggy
    2019 Momentum 351M, and 2018 RAM Cummins dually 6-speed.
    His: 1999 Honda Interceptor
    Hers: 2013 Spyder ST-S

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