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  1. #1
    Site Sponsor txloser's Avatar
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    310GK Bounce When Towing

    So, I recently upgraded from a Chevy 2500 standard bed towing this trailer to a Chevy 3500DRW. This has been a great improvement where lateral stability is concerned. Ride is more firm of course, but I expected and accept that. My issue now is the bounce on rough sections of road. The sea saw effect. Didn't have this with my 2500 except on the worst of roads, and even then it wasn't bad. I'm towing nearly level, hitch is over the axle, and trailer has all the heavy bits in front and basement storage. I was really hoping not to have to modify such a capable truck but it seems I may need to. Past trucks including the most recent 2500 had Bilstein 5100's on all four corners and rear airbags. I needed bags in the past for support, but not so much here as the rear only drops an inch past level. That being said, would airbags with a modest amount of pressure help calm the bounce or will I just be fighting the stock suspension from working as designed?

    As far as weight is concerned, the rear axle is sitting at 6960, and GVW is sitting at 12280 so no where near the truck's limits of 10200/14000.
    2024 310GK
    2024 Chevy 3500HD DRW, B&W companion


  2. #2
    Big Traveler
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    I still gotta think pin weight. Do you have the ability to get it weighed...somewhere close?
    The only time a see-saw effect happened to me is when I was light on the pin.

    Oh... there was a goofy section of I35 between Duluth and the Twin Cities. The bumps or cracks were spaced in such a way the trailer just wanted to buck...but, I see from your map you have never been to Minnesota..so it isn't that...lol
    2018 Dodge 3500 6.7 Cummins SRW w/Aisin
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  3. #3
    Seasoned Camper Conner58's Avatar
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    Thinking a shock change will help and the air bags probably help some also .
    Sounds like you need the same mods you made to 2500
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    We Have a Great Site Team WhittleBurner's Avatar
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    An air hitch will take away almost all that bounce you feel from bad roads. We have an AirSafe and rarely get bounced around .
    Last edited by WhittleBurner; 04-22-2024 at 06:59 AM.
    Marcy & Gary
    2014 Grand Design - Reflection 303RLS
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  5. #5
    Site Sponsor SolarPoweredRV's Avatar
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    Quote Originally Posted by txloser View Post
    So, I recently upgraded from a Chevy 2500 standard bed towing this trailer to a Chevy 3500DRW. This has been a great improvement where lateral stability is concerned. Ride is more firm of course, but I expected and accept that. My issue now is the bounce on rough sections of road. The sea saw effect. Didn't have this with my 2500 except on the worst of roads, and even then it wasn't bad. I'm towing nearly level, hitch is over the axle, and trailer has all the heavy bits in front and basement storage. I was really hoping not to have to modify such a capable truck but it seems I may need to. Past trucks including the most recent 2500 had Bilstein 5100's on all four corners and rear airbags. I needed bags in the past for support, but not so much here as the rear only drops an inch past level. That being said, would airbags with a modest amount of pressure help calm the bounce or will I just be fighting the stock suspension from working as designed?

    As far as weight is concerned, the rear axle is sitting at 6960, and GVW is sitting at 12280 so no where near the truck's limits of 10200/14000.
    I am thinking that the OEM shocks are not performing as well as the Bilsteen shocks you are used to. In addition, I think the air bags were helping your ride quality just as much as it was keeping the truck from squatting.

    If you have the factory Puck System in your new truck. I would suggest replacing your pinbox with a Reese GooseBox. The Reese GooseBox has an integrated airbag that really smooths out the ride. Considering what replacing your shocks with Bilsteens and adding airbags would cost, replacing the Pinbox and selling your existing hitch might be the most wallet friendly option.

    I will say from experience that we really love how the Reese GooseBox rides, and being able to simply pick up the ball to gain access to our truckbed is fantastic.
    David and Peggy
    2019 Ford F350 Lariat, 6.7L Diesel, Dually, Long Bed
    Running with 20k Reese Goosebox (Love It) and Ford Factory "Puck" system.
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  6. #6
    Rolling Along Gronk1's Avatar
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    My truck is older, but Bilsteins & air bags made a bid difference in my towing experience. It firmed up the bounce quite a bit, to much air makes the boing worse. I fine tune the bags on the go to find the sweet spot. The added benefit is when empty I put enough air in the bags to get off the overloads which make for a better ride.
    Paul, Sue & Wonder Dog Zane
    '18 Solitude 310 GK
    "15 F-350 6.7, DRW, CC

  7. #7
    Site Sponsor txloser's Avatar
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    I added some bags today. Just the 5000lb bags since I don’t need much. I’ll hold on the shocks for now since the current ones only have 1300 miles on them. I’ll do a test tow tomorrow to see how it does. I don’t expect a night and day improvement but even a small one is good.
    2024 310GK
    2024 Chevy 3500HD DRW, B&W companion


  8. #8
    Rolling Along Spartacus's Avatar
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    Quote Originally Posted by txloser View Post
    I added some bags today. Just the 5000lb bags since I don’t need much. I’ll hold on the shocks for now since the current ones only have 1300 miles on them. I’ll do a test tow tomorrow to see how it does. I don’t expect a night and day improvement but even a small one is good.

    Which air bags did you go with I have been thinking about adding somes?
    2022 GMC Denali Ultimate DRW
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  9. #9
    Seasoned Camper
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    Quote Originally Posted by Spartacus View Post
    Which air bags did you go with I have been thinking about adding somes?
    You didn’t ask me, but I just went with Airlift 5000lb, 2 gal tank, remote in truck cab. Works good so far.
    Larry and JoAnna
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  10. #10
    Site Sponsor txloser's Avatar
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    Quote Originally Posted by Spartacus View Post
    Which air bags did you go with I have been thinking about adding somes?
    I did the Air Lift 5000 ProSeries. Didnít need the 7500xl with the jounce. I also didnít add an onboard compressor this time. Just a single point shrader at the license plate. Iíll just leave them at 10 psi or 5psi and see what that yields with the trailer weight on it. Currently theyíre at 10psi and empty I canít tell much difference. If anything it almost rides better which is not what I expected. Iíve always had Firestone in the past, but figured Iíd give these a try just to mix things up a bit. Sure was nice letting someone else install these as theyíre a bit more of a pain than the Firestone bags to install. Still took the guy two hours. For me it wouldíve been 4 and a sore back today.
    2024 310GK
    2024 Chevy 3500HD DRW, B&W companion


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