Suspension Enhancement Recommendation for 2022 Ford F-350 with Camper

Question

Question:

I own a 2022 F350, XL, FX4, dually, 7.3 gasser, w/camper package equipped with a single rear upper overload spring. I haul a slide-in camper weighing 6000-6500 lbs. I am under the 14,000 lb GVWR, but am bumping it depending how much gear I carry. The rear end squat is about 4” and I would like to reduce that at least 2” to get the truck closer to level.. In your professional opinion, what is the best, most economical suspension upgrade I could make? I’ve looked into Timbrens, Sumo, and larger upper overload bump stops to engage the upper overload leaf spring sooner than the stock install, as well as trying to find an “add a leaf” upper overload which I have yet to find for this truck. The truck will be loaded about 75 of the time. Solo ride comfort is not the main consideration, but would be desirable. Please offer a recommendation.

asked by: Tony N

0

Expert Reply:

Hey Tony, if you are wanting additional suspension support and are concerned about ride quality at all the best solution is the Roadactive Suspension Kit part # RAS3611-SLHD as this is only option that will give the additional support you are looking for and actually improves ride quality. This can provide up to 3,000 lbs of additional suspension support to what your vehicle has currently.

If maximum support is desired and ride quality is not a concern then Timbren Severe Service kit part # TFRTT350J would be the way to go but that 25 percent of the time you are driving unloaded it will be pretty harsh.

Since you really just want to get back around 2 inches of sag the RAS kit will get you there and will provide best ride quality so that would be what I would go with. How does your truck handle with the camper?

expert reply by: Jameson C

0

Tony N.

2/19/2026

Jameson, Thanks for the recommendations. I have not yet driven this camper on my truck. We just received the truck a couple weeks ago. I plan to test drive it soon with a "close as I can get" travel load and then go weigh it, but other current priorities won't allow me to do that till early March. You've also helped me with a question about Timbrens specifically as well as Hellwig helper springs PN HE89FR (Hellwig PN 9706). In another thread you said the Hellwigs are an alternate solution but would not add as much additional support as the Timbrens. Do the Hellwig HE89FR springs have a 2000 capacity or something different?

Jameson C.

2/19/2026

@TonyN Hellwigs # HE89FR don't have a weight rating so it's hard to say exactly. They aren't adjustable either but some people really like them. For as heavy as your setup will be they wouldn't be my first choice but they would be better than nothing and the price is great.

Tony N.

2/19/2026

@JamesonC Yessir, I agree. I saw on line that the rating might be 2000 #. As you said, not the best but something. I did speak with Hellwig about their LP25 (2500#) and LP35 (3500#) springs which would work well. These spring packs have 3 and 4 leafs respectively. However, I would have to remove my factory installed upper overload which I, as a DIYer, am not willing to take on. The u-bolts that hold the spring pack are large and require a significant sized torque wrench to reinstall. Doable but not desireable. I suppose I may have limited options since I do not want to go with air springs and that would be the Timbrens. I am waiting for a followup from Timbren since this truck, with a raised body, needs a special P/N. It may be as simple as an additional 1" spacer for the TFRTT350J kit, which a prior Etrailer customer had done to his pickup very similar to mine.

Jameson C.

2/19/2026

@TonyN Is the Roadactive kit something you'd consider at all?

See All (5) Replies to Tony N. ∨

Steve

2/20/2026

Tony, Jameson asked me to chime in. I recently put Helwig on my F-150. It’s under a constant load of 600-700 lbs as an overland rig. While it only lifted the rear about an inch, ride quality is far better than without. Much less bouncing etc. I’m not a great mechanic and they only took an hour or so to install. Very simple and intuitive. I’m guessing you might need something more for your setup but at the same time, it’s not an expensive experiment compared to the alternatives.

Jameson C.

2/23/2026

@Steve Awesome feedback thanks!!

Tony N.

2/28/2026

@Jameson Thanks for all the info. I’m still evaluating my options and hope to make a purchase soon.

Answer 1

Hey Tony, based on how the Timbren kit part #TFRTT350J installs I do not see how your overload spring spacer block would interfere with it so this would work for you. Is that block that you have designed to engage the overload springs a little sooner…

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Answer 2

Hello Don, thanks for reaching out. There are multiple TorkLift Camper Tie Down fits for the 2017 Ford F250 XLT, so I would need to know the part numbers from your current front and rear tie downs to give you a firm answer. In all likelihood you will…

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Answer 3

Hey Don, thanks for the information! That's a significant amount of sag and a pretty heavy trailer, I recommend the Hellwig Pro Series Helper Springs item #HE79FR for the higher 2,500 lbs capacity. I doubt you're driving around with your bed…

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Answer 4

Hey Jeremiah, the Hellwig EZ-990 part #HE67FR can add height if you tighten them down enough. Basically how tight you go with the U-bolts will raise the suspension between 0 and 2 inches.

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Answer 5

G, Yes both the Hellwig EZ-990 Helper Springs #HE67FR and the SumoSprings Solo Custom Helper Springs #SSR-117-47 can be used together. The SumoSprings will replace the factory bump stops, and the Hellwig bolts above the factory leaf springs so the…

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Answer 6

Hey Chuck, that is a good question but yes the mounting holes for a sway bar are present on your 2021 Ram Promaster to allow you to install the Hellwig part #HE74YR that you referenced. What's the handling like now without a rear bar?

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Answer 7

The K-Source Snap & Zap Custom Towing Mirrors part #KS81850 are snap on side mirror extensions whereas the CIPA Custom Towing Mirrors part #CM11550 are slip on. The difference between the snap and slip options are as follows: The snap on mirrors…

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Answer 8

Hey Tony, thanks for all of the details on you new truck! Based on that the correct Torklift tie down sets you'd need are the part #TL87DR for steel or part #TL85SV for the aluminum set. Do you need a set of turnbuckles too? What camper do you…

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Answer 9

Yes, you can run both of your trailer's brown wires to the single brown wire of your new 5-way. Typically this is how most 5-ways are wired. Your old one was a wishbone style connector which means it has the two wires already for that circuit.

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Answer 10

Hello Charles, thanks for reaching out. Yes a 2-1/8" gap is too much. Sounds like you are going to need additional 1" spacers. For that you can use the following: - Timbren 1" Spacer For Raised Frame Vehicles - 3/8" Bushing…

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Answer 11

Hey Josh. The brake fluid proportioning valve on your 2020 Ford F-250 will be located underneath your hood near the master cylinder and brake lines behind or around the air intake. I attached a picture below so you know what to look for. If you…

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Answer 12

Hey Cory, Air springs are going to be the best at leveling your F-350 back out once the weight is added but they will most likely affect your unloaded ride quality, even when aired down. That being said, a majority of the unloaded ride quality…

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Suspension Enhancement Recommendation for 2022 Ford F-350 with Camper

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