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  1. #11
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    Quote Originally Posted by Chattacuda View Post
    .... It is incredible the factory hitch won't line up with the factory frame connections!
    In short, no you can not adjust the pin box up on a 310GK.

    Longer story, before we purchased our 2018 310GK, which used the Lippert "RotoFlex" 1621 pin box, I noticed an unused set of hole on the wings. I asked the question if we could raise the pin box. The GD line manager I was talking with contacted the design engineer and confirmed that no you can not raise the pin box on a 310GK as it will hit the supporting structure. Again, this was directly from the factory design engineer responsible for the Solitude 310GK. Now this was specifically for a 2018 310GK and the RotoFlex, but I doubt much (besides pin box brand) has changed. That is the answer I received. Should it have been adjustable - would have been nice but I was not making the design decisions/trade offs.

    In answer to your "nose high" question, I tow (rig in signature) with the front roughly 1-1/2" high (measure at the landing gear and the rear of the frame). With my 2018 F-350 SRW 4x4, I have a little over 5" bed rail to trailer clearance. These are pushing it, but it was my best compromise and I have not had any issues related to towing out of level that I am aware of.

    Chris
    Chris & Karen
    Fort Collins, CO
    2017 F-350 SRW 6.7 Lariat Value CC LB 4x4
    2018 Solitude 310GK - Sold 7/2023

  2. #12
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    I tow (rig in signature) with the front roughly 1-1/2" high (measure at the landing gear and the rear of the frame). With my 2018 F-350 SRW 4x4, I have a little over 5" bed rail to trailer clearance. These are pushing it, but it was my best compromise and I have not had any issues related to towing out of level that I am aware of.
    Similar case here. I figure my options are (1) lower the truck, (2) raise the trailer or (3) consider it good enough and leave it as is. I chose option 3.
    2021 Solitude 310GK: Linen/DP windows/gen prep/slide toppers/king bed/EOH disc brakes/Cooper-H tires
    2019 F-350: Lariat/CC/LB/Diesel/DRW/4x4/Bakflip MX4/B&W 20K/AirLift 5000
    Other stuff: TST 507 TPMS/2x BB batteries/Victron BMV-712/Champion 3500 dual fuel gen/Garmin 780 GPS/22" Blackstone

  3. #13
    Site Team Second Chance's Avatar
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    Quote Originally Posted by Chattacuda View Post
    Another one Apparently don'
    t know how to post multiple pics!
    After you select and upload one photo, just keep doing the same process before finishing the post.

    Rob
    U.S. Army Retired
    2012 F350 DRW CC LB Lariat PS 6.7
    2020 Solitude 310GK-R, MORryde IS, disc brakes,
    Sailun LRG tires, solar, DP windows, W/D
    (Previously in a Reflection 337RLS)
    Full time since 08/2015

  4. #14
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    Thanks! I figured it was something simple

  5. #15
    Site Team Second Chance's Avatar
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    Quote Originally Posted by Chattacuda View Post
    Thanks! I figured it was something simple
    Forum hint: if you use "Reply With Quote" (to the right of "Reply" as I have done here), people will know to whom you are referring.

    Rob
    U.S. Army Retired
    2012 F350 DRW CC LB Lariat PS 6.7
    2020 Solitude 310GK-R, MORryde IS, disc brakes,
    Sailun LRG tires, solar, DP windows, W/D
    (Previously in a Reflection 337RLS)
    Full time since 08/2015

  6. #16
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    Thanks all. I am on the final round of torquing the pin box bolts back where they were. I crawled under the rig and looks like I can raise my rear levelers 1” which will help. I will lower the truck hitch tonight and get some measurements when I hook up tomorrow. Thanks again. Wish I had asked before starting down this road!
    Regards
    Larry

  7. #17
    Site Team Second Chance's Avatar
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    Quote Originally Posted by Chattacuda View Post
    Thanks all. I am on the final round of torquing the pin box bolts back where they were. I crawled under the rig and looks like I can raise my rear levelers 1” which will help. I will lower the truck hitch tonight and get some measurements when I hook up tomorrow. Thanks again. Wish I had asked before starting down this road!
    Regards
    Larry
    Just be careful to maintain adequate overhang-to-bedrail clearance.

    Rob
    U.S. Army Retired
    2012 F350 DRW CC LB Lariat PS 6.7
    2020 Solitude 310GK-R, MORryde IS, disc brakes,
    Sailun LRG tires, solar, DP windows, W/D
    (Previously in a Reflection 337RLS)
    Full time since 08/2015

  8. #18
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    ^-- 2X what Rob @Second Chance said. I have 5+ inches of clearance, I never go off road and it is very tight. Fine on the interstate/highway, but gas stations, drive ways, even drain gutters make me keep a careful watch on the clearance.

    Chris
    Chris & Karen
    Fort Collins, CO
    2017 F-350 SRW 6.7 Lariat Value CC LB 4x4
    2018 Solitude 310GK - Sold 7/2023

  9. #19
    Long Hauler geotex1's Avatar
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    If it becomes a need, it's not a big dollar investment to have custom spring packs made that will provide more height to the camper and leave the rest of the suspension alone. However, you them need to determine your new rolling height and plan routes accordingly.
    Rob & Nikki + Cloverfield
    2020 Grand Design Solitude S-Class 3350RL
    2015 RAM 3500 Longhorn Laramie Crew Cab, Long Bed, 4x4 Dually Cummins/AISIN

    Mountains of Pennsylvania

  10. #20
    Seasoned Camper
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    Quote Originally Posted by Chattacuda View Post
    Thanks all. I am on the final round of torquing the pin box bolts back where they were.
    Use some blue locktite on those bolts. I had two bolts start to come loose. I was attaching a level to the king pin and set my screwdriver in the pin box for a minute while adjusting the level and happened to brush up against a bolt and it was loose. I found one more that was loose too so I backed those off and applied blue loctite and then did the rest, one at a time, then torqueing them to spec.. They have remained tight since.

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