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Hellwig

Hellwig

Hellwig 01-07 Ford F-350 SD Load Pro- To 3500lb Level LC 4 Leaf Stack Helper Spring w/o Mounting Kit

SKU: HWG3520

Suspension Helper Springs

HWG LP-35 Heavy Duty Leaf Kits...

Hellwig 01-07 Ford F-350 SD Load Pro- To 3500lb Level LC 4 Leaf Stack Helper Spring w/o Mounting Kit

Hellwig

Hellwig

Hellwig 01-07 Ford F-350 SD Load Pro- To 3500lb Level LC 4 Leaf Stack Helper Spring w/o Mounting Kit

SKU: HWG3520

Suspension Helper Springs

HWG LP-35 Heavy Duty Leaf Kits...

A$1,096.45
IN STOCK! Est Ship 3-5 days. In stock at 2 locations (8 available)

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Description

Exclusive Hellwig flash sale discount at StreetFX!

Talk about timing! This is a limited offer while stocks last on various Hellwig part numbers. There's never been a better time to buy your Hellwig upgrades, so what are you waiting for?!

This item is currently on sale!

Same-day payment required to secure promotional price. Promotions may end early or be extended based on stock levels or other factors.

Helper Spring Kit - LP-35 - Add-A-Leaf - Stock Height - Rear - Steel - Silver Powder Coat - Various Applications - Kit

LP-35 HD HELPER SPR

The Hellwig LP-35 Helper Spring set the standard for all other aftermarket helper springs. Featuring a Fulltime Spring Rate design it is the workhorse of the Hellwig Spring line. This is ideal for fleet applications or vehicles that consistently carry a heavy load day in and day out.

Additional Information

LP-35 Heavy Duty Load Leveling Helper Springs Late Model Dodge; Ford

Part Type

Leaf Helper Spring

Additional Application Notes
• For Air Bags On Lifted Vehicles Using Non-Tapered Lift Block~Use PN[4822] Spacer For A 2 in. Rear Lift And~PN[4824] Spacer For A 4 in. Rear Lift 3500 lbs. Capacity; Mounting Hardware Kit Is Required 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs; 3500 lbs. Capacity Do Not Use w/Factory Overload Contact Springs 4 Leaf Stack
• 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs; 3500 lbs. Capacity Do Not Use w/Factory Overload Contact Springs 4 Leaf Stack
• Must Remove Factory Overload Contact Springs/Removal Of Contact Overload~For Air Bags On Lifted Vehicles Using Non-Tapered Lift Block~Use PN[4822] Spacer For A 2 in. Rear Lift And~PN[4824] Spacer For A 4 in. Rear Lift~Remove Factory Overload Springs/May Require U-Bolt/Center Bolt Replacement 3500 lbs. Capacity; Mounting Hardware Kit Is Required 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs; Do Not Use w/ Factory Overload Contact Springs 3500 lbs. Capacity Do Not Use w/Factory Overload Contact Springs Do Not Use w/ Factory Overload Contact Springs 4 Leaf Stack
• Must Remove Factory Overload Contact Springs/Removal Of Contact Overload~For Air Bags On Lifted Vehicles Using Non-Tapered Lift Block~Use PN[4822] Spacer For A 2 in. Rear Lift And~PN[4824] Spacer For A 4 in. Rear Lift~Remove Factory Overload Springs/May Require U-Bolt/Center Bolt Replacement 3500 lbs. Capacity; Mounting Hardware Kit Is Required 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs;; Do Not Use w/ Factory Overload Contact Springs 3500 lbs. Capacity Do Not Use w/Factory Overload Contact Springs Do Not Use w/ Factory Overload Contact Springs 4 Leaf Stack
• 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs; Do Not Use w/ Factory Overload Contact Springs 3500 lbs. Capacity Do Not Use w/Factory Overload Contact Springs Do Not Use w/ Factory Overload Contact Springs 4 Leaf Stack
• Must Remove Factory Overload Contact Springs/Removal Of Contact Overload~Remove Factory Overload Springs/May Require U-Bolt/Center Bolt Replacement 3500 lbs. Capacity; Mounting Hardware Kit Is Required
• Must Remove Factory Overload Contact Springs/Removal Of Contact Overload~Remove Factory Overload Springs/May Require U-Bolt/Center Bolt Replacement 3500 lbs. Capacity; Mounting Hardware Kit Is Required 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs; Do Not Use w/ Factory Overload Contact Springs 3500 lbs. Capacity Do Not Use w/Factory Overload Contact Springs Do Not Use w/ Factory Overload Contact Springs 4 Leaf Stack
• Must Remove Factory Overload Springs Or Use 9703 Contact Overload Helper 3500 lbs. Capacity; Mounting Hardware Kit Is Required 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs; Do Not Use w/ Factory Overload Contact Springs 3500 lbs. Capacity Do Not Use w/Factory Overload Contact Springs Do Not Use w/ Factory Overload Contact Springs 4 Leaf Stack
• Must Remove Factory Overload Contact Springs/Removal Of Contact Overload~Must Remove Factory Overload Springs Or Use 9703 Contact Overload Helper 3500 lbs. Capacity; Mounting Hardware Kit Is Required
• Up to 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs; Mounting Kit sold seperatly Up to 3500 lbs. Capacity Must Remove Factory Overload Springs Or Use 9703 Contact Overload Helper 3500 lbs. Capacity; Mounting Hardware Kit Is Required Mounting Kit sold seperatly Do Not Use w/Factory Overload Contact Springs 4 Leaf Stack
• Up to 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs; Mounting Kit sold seperatly Up to 3500 lbs. Capacity Mounting Kit sold seperatly Do Not Use w/Factory Overload Contact Springs 4 Leaf Stack
• Must Remove Factory Overload Springs Or Use 9703 Contact Overload Helper 3500 lbs. Capacity; Mounting Hardware Kit Is Required
• Up to 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs; Mounting Kit sold seperatly Up To 3500 lbs. Capacity Do Not Use w/Factory Overload Contact Springs or use Big Wig 9703 4 Leaf Stack
• Up to 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs; Mounting Kit sold seperatly Up To 3500 lbs. Capacity Must Remove Factory Overload Contact Springs/Removal Of Contact Overload~Must Remove Factory Overload Springs Or Use 9703 Contact Overload Helper 3500 lbs. Capacity; Mounting Hardware Kit Is Required Do Not Use w/Factory Overload Contact Springs or use Big Wig 9703 4 Leaf Stack
• Up to 3500 lbs. Capacity; 4 Leaf Stack; Do Not Use w/Factory Overload Contact Springs; Mounting Kit sold seperatly Up to 3500 lbs. Capacity Single Rear Wheels Must Remove Factory Overload Springs Or Use 9703 Contact Overload Helper 3500 lbs. Capacity; Mounting Hardware Kit Is Required Mounting Kit sold seperatly Do Not Use w/Factory Overload Contact Springs 4 Leaf Stack
• Single Rear Wheels Must Remove Factory Overload Springs Or Use 9703 Contact Overload Helper 3500 lbs. Capacity; Mounting Hardware Kit Is Required

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

Data: v4.2 - Upd: 2026-11-09 11:20:33

Features

  • 1 ton applications
  • Easy Installation
  • Install Kit Required (see Load Pro installation kits)
  • Level Load Capacity up to 3500lbs
  • Limited Lifetime Warranty
  • Tunable

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Adjustable Length:Yes
Color:Silver Hammertone
Description:LP-35 Heavy Duty Load Leveling Helper Springs
Material:Steel
Mounting Hardware Included:No
Part Number:hwg3520
Title:Hellwig LP-35 Heavy Duty Load Leveler Helper Springs

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:40:47

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Hellwig, Hellwig Products
StreetFX SKU hwg3520
SFX Item ID 4158839
Accounting SKU hwg-3520
Manufacturer SKU 3520
Manufacturer UPC 745662035204
Alternative References 3520, HEL-3520, HEL3520

Helper Spring, LP-35, Black Powdercoated, Dodge, Ford, Ram, Pickup, Kit

Hellwig LP-35 helper spring kits are fully adjustable to ensure improved side-to-side leveling control. Made from high-quality alloy spring steel, hot-formed and heat-treated for strength and durability, these suspension helper springs can virtually eliminate sagging. Featuring a 4-leaf stack with a 3,500 lb. level load capacity, LP-35 springs offer the maximum in carrying capacity and are recommended for 3/4 and 1 ton applications. An installation kit (sold separately) is required for most models. Order the spring kit tailored for fitment on your specific vehicle.

Product Attributes
UPC745662035204
BrandHellwig
QuantitySold as a kit.
Part TypeSuspension Helper Springs
Product LineHellwig LP-35 Helper Spring Kits
Spring FinishBlack
Drilling RequiredNo
Hardware IncludedNo
Maximum Safe Load3,500 lbs.
Installation Kit RequiredYes
Manufacturer's Part Number3520

Manufacturer Attributes
Color Silver Hammertone
Manufacturer Designation LP-35 Heavy Duty Load Leveling Helper Springs
Product Class Leaf Helper Spring
Construction/Type LP-35 Heavy Duty Load Leveling Helper Springs Late Model Dodge, Ford
Vehicle Brief Hellwig 3520
Market Description The Hellwig LP-35 Helper Spring set the standard for all other aftermarket helper springs. Featuring a Fulltime Spring Rate design it is the workhorse of the Hellwig Spring line. This is ideal for fleet applications or vehicles that consistently carry a heavy load day in and day out.

Compatibility

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