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1999-2007 Ford F250, F350 Super Duty 2wd & 4wd - 3500 lbs Helper Springs - LP-35 [Progressive] (pair)


Model: 3520
by Hellwig
5 stars 4.3/5Read Reviews

Free Shipping

Retail Price: $426.95
Your Price: $327.88
+ 10% OFF SALE

Sale Price: $295.09

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Mounting Kit

Front / Rear



Easy 1-2-3 Installation

 Raise Vehicle

 Align Helper Springs

 Attach U-Bolts

Hellwig Load Pro-35 4-Leaf Helper Springs

The Load Pro 35 kit is designed for full sized pickup trucks, vans, RVs, and sport utility vehicles. The kit contains 2 heavy duty leaf assemblies that run over both sides of the axle.

* Necessary Mounting Hardware Included or Listed Above

Hellwig's steel leaf helper springs are ideal for helping manage your load more efficiently. They are simple to install bolting on to your new or old factory rear leaf springs and require little or no maintenance.

  • Level Load Capacity: 3500 lbs. - 4 Leaf Stack
  • Offers Maximum in Carrying Capacity
  • Mounting Kit Included or Listed in Options Above.
  • Reccomended for 3/4 and 1 ton Applications
  • Simple bolt-on installation.
  • Sold as a PAIR (both left and right)
  • Hellwig products come with a Million Mile Warranty

Click here to view Installation Instructions

  • Hellwig springs are made to increase the "level-load" carrying capacity of your vehicle. Never load the vehicle beyond the manufacturer's maximum gross vehicle weight rating (GVWR).
  • Average Shipping Time: 4-7 Business Days
Vehicle Applications
  • Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
  • Models: F250, F350 (2wd & 4wd)
CA Residents: Prop 65 Warning
Customer Reviews
5 stars 4.3 / 5This item is rated 4.3 out of 5 based on 4 customer reviews.
5 of 5 Stars

by MIke W

Easy to install. Eliminated camper sway for sure. Supported camper 100 percent. Quality made and no defects. Great product that I highly recommend!

4 of 5 Stars


The Hellwig Helper Springs were easy install and Performs as needed.

4 of 5 Stars

by Robert M

It fit and went in the vehicle very easily ! but also seemed to raise the empty ride height about 2 inches and the nuts are all the way at the end of the u-bolts ! Haven't used it pulling a trailer yet so don't know how it affects the ride or handleing yet !

4 of 5 Stars

by Steven L

So far so good. Springs really help when truck is loaded with firewood.It doesn't sag near as much. installation was straight forward installed in about two hours. Hauled several loads over 150 miles from cabin to home. No needed adjustment so far. They will make your truck ride a little firmer when empty. Overall good bang for your buck!

Displaying 1 to 4 (of 4 reviews)


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