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Old 06-05-2018, 08:37 PM   #1
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New Seismic 4113 owner question

looking at the dry hitch weight, around 3800 lbs, wondering if I will need to put air bags in my truck? Truck is a 2018 F350 dually, rated payload is 5340 lbs. Quick number run shows I will have about 1k lbs capacity left after family is in the truck, as I haven't towed with much/anything in the tanks for prior trailers.

Also, where is the fresh tank in this model?

Thanks,
James
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Old 06-07-2018, 07:48 AM   #2
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I had a 2016 F350 Dually with my 3914, i think its around 3500 hitch weight, i put bags in my truck. That trailers made it squat pretty good. Fords are kinda known for that. I have a 2017 F-450 now and im even debating it in the new truck. I also like the ride it gives


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Old 06-10-2018, 07:20 AM   #3
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I have a 2017 4311 with a 2015 GMC 3500 4 door dually. Based on how mine sits and rides I highly doubt you will need to bag yours.
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Old 06-10-2018, 09:37 AM   #4
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I tow a north point 377 with my 14 F350 dually and I have air bags on it. Fords do squat more.
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Old 06-10-2018, 05:32 PM   #5
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thanks all for the feedback. First FW trailer for us, trying to make sure I have the truck prepared correctly. Hoping it doesn't need the bags, but based on the feedback from the ford guys, seems like I better plan on it...

This 4113 better be worth it!
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Old 06-10-2018, 06:14 PM   #6
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I got the Air Lift 5000 bags from Summit Racing in McDonough, Ga. not far from you. I payed $250.00 for the kit but that was 6 years ago I think their around $300.00 now
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Old 06-12-2018, 06:16 PM   #7
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that is good info! I just poked around, suspension connection has many kits. Now to figure out if Air Lift or Hellwig are the way to go....
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Old 08-01-2018, 11:17 AM   #8
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Air bags help. My F350 did squat more than my Chevy does now but I don't think they are a must. Just might be a little more comforting. It is one more thing to deal with though so get one you can control from inside the cab.
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Old 08-01-2018, 05:34 PM   #9
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It was sitting on the overload springs constantly, so got some Hellwig bags delivered. Now for the install...
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Old 08-18-2018, 07:29 PM   #10
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I have Airlift 5000 bags on the rear of my 03 F350SD 4x4. I love them. They keep the truck perfectly level.
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Old 10-15-2018, 04:37 AM   #11
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Just measured my pin weight at 4520#!!!
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Old 10-17-2018, 04:05 PM   #12
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yikes....dry? If so, that is a serious miss in specs....
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Old 10-17-2018, 08:30 PM   #13
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Quote:
Originally Posted by atlantaM3 View Post
yikes....dry? If so, that is a serious miss in specs....
Going to double check the truck Pedro’s we unload the entire camper for a reweigh
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Old 10-19-2018, 03:54 PM   #14
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Checked out Sumo springs yet? I called etrailer to order an airbag setup for my F350 and the rep talked me out of spending 750+ and recommended the $200 Sumo springs. I haven't installed them yet but the reviews on etrailer are very very good.
Maybe other members here have them??
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Old 11-02-2018, 09:29 PM   #15
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I have a 2017 Seismic 4113 and pull it with a 2017 Dodge Ram 3500, approximate 5,600 lb payload capacity. The Seismic 4113 will make it squat slightly from level when there is nothing in the garage compartment of the trailer. When our 2005 Smart Fortwo at about 1,700 lb is loaded into the garage then the Dodge sits level. I installed Firestone airbags just because I can keep it level at any time I need it. For the three hundred dollars or so its well worth it. I don't think I have ever needed to inflate much more than 15 psi? Of course I'm rather new to this as well. I wonder what pressure others are inflating their airbags to?
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Old 11-05-2018, 10:02 AM   #16
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I have Airlift 5000 bags on the rear of my 03 F350SD 4x4. I love them. They keep the truck perfectly level.
I don't have much of an issue with the pin weight. The GMs don't squat that much. My concern is the overall weight. Having only 900 lbs remaining without including a toy. I have found out theres and issue with the water tank so there was some water in there, but not even 200lbs.
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