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2001-2010 Chevy / GMC 2500HD & 3500HD (2wd & 4wd) - 3500 lbs Helper Springs - LP-35 [Progressive] (pair)


Model: 3527
by Hellwig

Free Shipping

Retail Price: $665.95
Your Price: $511.87

Sale Price: $486.28

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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: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
  • Model: 2500 HD, 3500 HD (2wd & 4wd)
CA Residents: Prop 65 Warning
Customer Reviews
4 stars 4 / 5This item is rated 4 out of 5 based on 4 customer reviews.
2 of 5 Stars

by Paul C

After installing the helper springs it became very evident they were not the proper solution for my application. I felt like there was no progression, they immediately made the ride very stiff and the spring slap was annoying even with a 15K lbs. fifth wheel attached. Now to the hardware, the hardware (u-bolts) bend before reaching the recommended torque value. Not sure if that played into the ride and noise issue, bottom line is I tried them for two weeks now I have a $350.00 paper weight sitting in my garage.

5 of 5 Stars

by John G

Worked better than airbag systems we had tried before,install and forget it,

4 of 5 Stars

by Tony B

The installation process was a little more difficult than bolt on like they were supposed to be. As the the product itself, I haven't ever had a pair of helper springs that work as well as these do. They're easy to adjust and work excellent. Very good product. I'm looking to get some for my other truck as well.

5 of 5 Stars


Owner installed on a 2006 Duramax 2500 HD long bed. Easy installation but I needed to buy an closed end wrench with a short handle to tighten some bolts because I did not have a deep socket. I carry a truck camper in the bed and the springs eliminated sagging, and "porpoising" on highways with bad expansion joints. The camper when fully loaded with propane, clothes, food, some water, extra battery, etc. weighs approximately 3300 pounds. The truck still has the original rear shocks. If the helper springs didn't do their job I was going to replace those. Now I am in no hurry to do that but will eventually to improve ride when bed is not carrying a load. I previously installed a heavy duty rear sway bar which definitely helped with side to side movements. The combination of the springs and bar have instilled confidence in trucks ability to handle tight mountain roads with a top heavy load of truck camper.

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