To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
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Heavy trailers and bed loads can make your truck squat and throw off handling. The Hellwig Load Pro 35 Heavy Duty Helper Springs add 3,500 lbs of rear suspension support to keep your ride level and steady when towing or hauling. By mounting above your factory leaf springs, they prevent sagging, help maintain steering and braking control, and extend the life of your stock suspension, tires, and brakes.
Hauling over uneven roads or curves can cause sway or body roll that wears you out behind the wheel. These helper springs flex with your leaf pack to limit bounce while keeping your truck stable. You’ll feel less sway on turns and better control through crosswinds or uneven terrain thanks to their solid constant-rate design.
Sometimes one side of the bed carries more weight—tools, campers, or a trailer tongue set off center. The Hellwig Load Pro 35 lets you adjust the driver’s and passenger’s sides separately to balance uneven loads. That means a level stance even when the cargo isn’t perfectly centered.
Durable steel construction with a silver vein hammer tone powder coat finish resists corrosion for long-lasting performance. The included custom installation kit bolts directly above your factory leaf springs for a straightforward install without complicated modifications. Once in place, you’ve got reliable suspension support that’s ready for constant use season after season.

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello everybody, this is Jeff at etrailer.com. Today we're gonna take a look at the Hellwig Load Pro 35 Heavy Duty Helper Springs with the custom mounting kit for the Ford trucks. Now this is a custom fit part. This is designed to fit the 2011 to 2022 Ford F250 and F350 Super Duty trucks also fits the 2016 to 2022 Ford F450 and F550 cabin chassis models. And on a custom fit part like this, I do recommend for you to go to our website, use the fit guide put in your year model vehicle and it'll show if this will work for application. Now this Load Pro 35 spring set features a full-time spring rate design, which is ideal for vehicles or fleet applications that consistently carry a heavy load day in and day out.
These are custom helper springs. They'll upgrade the factory leaf springs to reduce any bus sway or body roll and they'll prevent sagging when you're towing or hauling heavy loads. This will also help extend the life of your factory suspension tires and brakes. Now these helper springs will flex with the leaf springs to limit bouncing while provide optimal stability and they are a very easy install. Basically they'll just bolt above your factory leaf springs.
The driver's and passenger side can be adjusted independently for uneven loads. And I'm showing here with the kit already installed. But the custom installation kit is included and includes all zinc plated hardware to install this. This is a durable steel construction. It'll show a long lasting performance.
And I did wanna zoom in and mention about the coating they put on this. They use a silver vein hammer tone powder coat finish which gives you a good protection, resists any corrosion, holds up well over time, takes a lot of abuse. And these parts are made in the USA, weight capacity on this is 3,500 pounds. One note I do wanna mention is that these Hellwig helper springs will not increase your vehicle's weight carrying capacity. It does come with a nice set of instructions that'll describe how this all goes together.
But that should do it for the review on the Hellwig Load Pro 35 Heavy Duty Helper Springs with the custom mounting kit for the Ford trucks.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews

Brooke M.
5/15/2025
Wow, 2 months in Alaska? That must have been beautiful. Would I be correct in assuming you got a front row view of the Northern Lights during your trip?

Brooke M.
4/8/2025
Hey Charles! Glad you able to improvise but I really feel bad it arrived missing pieces. Let me look into this more closely for you.
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Mike L.
7/14/2026
I wish we did too, Otis! The problem is that we have multiple warehouses. We don't stock everything at our Wentzville location where we used to offer will call which caused problems. We decided that although it's a great idea, we shouldn't do it if we can't do it right.