Suspension Enhancement Recommendation for 2019 Ford F-150 4WD with Lift Kit

Question

Question:

I have a 2019 F150 4WD with larger 3inch rear blocks, meaning the rear is 2inch higher than stock. The gap from frame to axle is 11. Am I right in thinking the total height of the 1500LB spring with spacer is roughly 9? That would leave 2inch gap/sag before the springs would kick in. Are thicker spacers available so I could reduce the gap?

asked by: Alex C

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Expert Reply:

Since SumoSprings doesn't offer a great solution for lifted trucks I'd rather recommend a different suspension enhancement for your 2019 Ford F-150 that has a lift with the RoadActive Suspension Kit # RAS3611-YHD which is not affected by lift kits based on how it installs and actually provides the best support, ride quality, and stability so wins in all categories. Other options will give you the support but you'll sacrifice ride quality but with this you get the support and improved loaded and unloaded ride quality.

expert reply by: Jameson C

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Answer 1

You will not use the spacers included with the RoadActive Suspension Custom Leaf Spring Enhancement Kit #RAS3611-YHD if your 2015 Ford F-150 already has the SumoSprings Solo Custom Helper Springs #SSR-117-40. The SumoSprings have a different mounting…

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Answer 2

Yes you can use the RoadActive Suspension Custom Leaf Spring Enhancement Kit #RAS3611-YHD in conjunction with your SumoSprings, however the two may counter each other, so it is recommended to use the lowest setting on the RAS to correct this.…

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Answer 3

The best suspension enhancement solution we have for your 2018 Ford F-150 4x4 that you'll be towing with is the RoadActive Suspension Kit part #RAS3611-YHD which is easy to install, adjustable in support, maintenance-free, and unlike other…

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Answer 4

The Roadactive suspension kit part #RAS3611-YHD will technically fit your 2018 Ford F-150 and work just fine with your SumoSprings kit. I'd be a little worried that you are over the trucks capacity if you need two different suspension enhancement…

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Answer 5

Hey Kurt, yes the correct gap for SumoSprings Solo kits like the part #SS88UV is 1/2 inch to 1 inch like you mentioned. Did you install this already?

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Answer 6

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 7

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 8

Hey Doug! The Firestone Ride-Rite Air Helper Springs #F35FV are the right kit for your 2026 Ford F-350 FX4 dually. However, you will need to measure to be sure it fits. The distance from the top of your rear axle to the top of the jounce bump stop…

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Answer 9

Since the pin weight of your camper is 2.1k, I recommend going with the LoadLifter 5000 opposed to the 7500. While technically there is not reason you couldn't use the 7500 kit, it really is not necessary for a camper like yours. Generally the…

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Answer 10

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 11

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Answer 12

Hello Dan, Great question. When you’re comparing the Firestone kits #F59VV and #F2582, they both technically fit your 2025 F-150, but they are designed around different mounting locations and truck configurations. The #F2582 is the traditional…

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Suspension Enhancement Recommendation for 2019 Ford F-150 4WD with Lift Kit

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