Best Leaf Spring Helpers For Trucks: Compare 10 Kits

#1 · Best Overall

1. ATRACYPART Helper Kit

• Weight: 22.7 lb

Best for: High-capacity classic truck support.

Why it ranks #1: Lists up to 2,000 pounds of added support and names applications across Chevrolet, GMC, Ford, Dodge, and Toyota trucks and SUVs.

Support for up to 2,000 pounds is the defining feature of ATRACYPART’s rear helper spring kit, giving owners a substantial load-assist option for trucks and SUVs. Its listed applications span several older Chevrolet, GMC, Ford, and Dodge models, plus Toyota Tundra model years 2000–2006, making vehicle-specific coverage central to its appeal.

The kit mounts directly on top of the rear leaf springs, so its support works with the existing spring location rather than replacing the spring pack. Its stated capacity of up to 2,000 pounds targets owners seeking help with rear sag, sway, or bounce under load. The compatibility list names Chevrolet C10/K10/C20/K20, GMC C1500/C2500, Ford F-100/F-150/F-250, Dodge D100–D350, and Toyota Tundra applications; check those listed years against your vehicle before choosing it.

Skip it if you need a verified application outside its listed model years; Wyckoff’s 500-pound kit is a lower-capacity alternative for its intended vehicle applications.

Choose this ATRACYPART kit if your listed truck or SUV needs substantial rear load support and matches the stated applications. Its model-year coverage is specific, so buyers of unlisted vehicles should select a kit with confirmed application details.

Listed on Amazon as: Helper Spring Kit 2000 LBS Leaf Spring Load Assist for Pickup Trucks SUVs

#2 · Highest Capacity

2. Hellwig 61912

• Weight: 55.1 lb
• Dimensions: 43 x 8 x 2 in

Best for: High-capacity tunable support.

Why it ranks #2: Its stated level-load capacity reaches 2,500 pounds, the highest listed figure here, with over-axle mounting and applications for various Chevrolet and GMC trucks.

A level-load capacity of up to 2,500 pounds makes the Hellwig 61912 a high-capacity option for Chevrolet and GMC truck owners with listed applications. Its over-axle mounting and tunable Silent Support System bushings combine load assistance with a configuration intended to support quieter, steadier operation.

The over-axle mounting design provides a defined placement for the helper springs, while the listed easy-install feature may simplify the installation workflow. Tunable Silent Support System bushings let buyers adjust the support setup, and the stated capacity reaches up to 2,500 pounds of level-load support. Hellwig identifies various Chevrolet and GMC truck applications, but does not name them here, so buyers need to check fitment rather than assume universal compatibility.

Skip it if you need an application list in the supplied details; ATRACYPART’s kit names specific truck models and year ranges.

This Hellwig is for Chevrolet or GMC truck owners seeking substantial level-load support and tunable bushings. The supplied information does not identify exact applications, so make vehicle fitment the deciding boundary before selecting it.

Listed on Amazon as: Hellwig 61912 Silent Support System Helper Spring with up to 2500 lbs Level Load Capacity

#3 · 500-Lb Assist

3. Wyckoff Helper Spring Kit

• Weight: 12.62 lb

Best for: Corrosion-conscious moderate hauling.

Why it ranks #3: States up to 500 pounds of additional load support and uses powder-coated steel; the listing also describes towing and hauling applications.

Powder-coated, corrosion-resistant steel sets the Wyckoff helper spring kit apart for owners hauling or towing in conditions where component durability matters. It adds up to 500 pounds of rear load capacity, aiming to reinforce the existing suspension for cargo and trailer duties without calling for a full spring pack replacement.

The stated 500-pound added capacity gives truck and SUV owners a defined load-support range for towing or carrying cargo. Powder-coated steel is specified as corrosion-resistant and suitable for harsh on- and off-road conditions, while the stability-focused design is intended to enhance stiffness and handling. The supplied installation guidance begins with cleaning and inspecting the suspension, then raising and supporting the rear axle; allow for that safety-conscious setup during installation.

Skip it if you need more than 500 pounds of added support; Hellwig 61912 specifies level-load capacity up to 2,500 pounds for its listed applications.

Wyckoff suits owners seeking moderate added support for towing or cargo, with corrosion-resistant steel as a useful material feature. Its 500-pound rating is the key boundary; choose a higher-capacity kit if your load needs exceed that figure.

Listed on Amazon as: Wyckoff Helper Spring Kit,500LBS Heavy Duty for Pickup Truck, SUV,Trailer

#4 · Bolt-On Install

4. MSFORSPIRT Helper Kit

Best for: Quick bolt-on 500-pound support.

Why it ranks #4: States 500 pounds of support and describes direct mounting to existing leaf springs without welding, with included U-bolts, brackets, nuts, and washers.

A stated under-30-minute bolt-on installation with no welding is the practical draw of MSFORSPIRT’s 500-pound helper spring kit. It mounts directly to existing leaf springs and is presented for midsize trucks, combining a defined support rating with a comparatively straightforward installation approach for hauling and towing tasks.

The 500-pound capacity is intended to help limit bed sag while towing trailers or carrying heavy payloads, and the description also associates the kit with reduced body roll and sway. Direct mounting to existing leaf springs avoids welding, while the supplied hardware includes U-bolts, brackets, nuts, and washers. The stated fit covers most midsize trucks and names F-150, Silverado, and RAM; its application wording is broad, so verify the vehicle-specific match.

Skip it if you need substantially more than 500 pounds of support; Hellwig 61912 lists up to 2,500 pounds for various Chevrolet and GMC applications.

This MSFORSPIRT kit suits midsize-truck owners wanting a bolt-on route to 500 pounds of added support for towing or hauling. Its broad fit wording and capacity make vehicle match and load needs the important boundaries.

Listed on Amazon as: 500LB Heavy Duty Helper Spring Kit for Pickup Trucks & SUVs – Towing Stabilizer to Prevent Sagging, Reduce Body Roll for Trailers, ATVs, Campers – Easy Install Upgrade for Leaf Springs

#5

5. Venussar Helper Spring Kit

• Weight: 12 lb

Best for: Stock-suspension load assist.

Why it ranks #5: Provides a stated 500-pound support rating and installs on top of the rear leaf springs to work with the vehicle’s existing spring pack.

Venussar’s helper springs work on top of the rear leaf springs and alongside the stock spring pack, making compatibility with the existing suspension the key feature. The kit is rated to help keep a truck level with up to 500 pounds of load, for owners carrying cargo or towing trailers.

Because the springs are specified to sit on top of the rear leaf springs and work with the stock spring pack, they add support without describing a full spring-pack replacement. The 500-pound rating gives buyers a clear upper load-assist figure for the stated leveling purpose. Its alloy-steel construction is specified, and the compact dimensions are listed as 18 by 2 by 1 inches; the supplied details do not identify vehicle applications, so confirm the match before purchase.

Skip it if you need named vehicle fitment in the listing; ATRACYPART specifies applications and model years for several truck makes.

Venussar fits buyers seeking modest load assistance while retaining the stock spring pack, particularly for cargo or trailer use up to its 500-pound rating. Its missing application list makes confirming vehicle compatibility the central boundary.

Listed on Amazon as: Helper Spring Kit, 500 LBS Heavy Duty Helper Springs

#6

6. Skyjacker R1115

• Weight: 24 lb
• Dimensions: 8 x 3.25 x 42 in

Best for: Progressive add-a-leaf lift.

Why it ranks #6: This add-a-leaf pair is made from American steel, lists a 1.5-inch lift height, and specifies load capacity equal to or greater than OE.

A 1.5-inch lift height distinguishes Skyjacker’s R1115 Softride add-a-leaf from helper kits that state only load support. Its progressive multileaf packs are specified to provide capacity equal to or greater than OE, giving owners an option that combines added leaf-spring support with a stated change in ride height.

The progressive multileaf-pack construction is specified to deliver load capacity equal to or greater than OE, tying its support to a defined spring-pack design. A listed 1.5-inch lift height also matters to buyers seeking added height alongside rear spring assistance. Skyjacker describes the leaves as American steel and shot-peened, a process it says increases tensile strength; the product is sold as a pair with a tie bolt, so plan around an add-a-leaf installation rather than a bolt-on helper kit.

Skip it if you want added support without a stated lift height; Venussar’s kit specifies load leveling up to 500 pounds without listing a lift.

Choose the Skyjacker if you want an add-a-leaf approach, progressive packs, and a listed 1.5-inch lift. Buyers seeking only a specified load-assist rating should note that this listing emphasizes OE-level capacity and lift instead.

Listed on Amazon as: Skyjacker R1115 Softride Rear Add-A-Leaf Helper Spring with Tie Bolt – Pair

#7

7. Hellwig EZ-550

• Weight: 12 lb
• Dimensions: 6 x 2.5 x 2 in

Best for: Fit-checked EZ-550 shoppers.

Why it ranks #7: A helper spring kit listed for various truck makes and models; its instructions warn against installation on vehicles with composite plastic leaf springs.

Hellwig’s EZ-550 identity is the clearest differentiator for shoppers narrowing down a named helper spring series. The kit is described for various truck makes and models, making vehicle fitment the central selection step; its listing also provides an installation warning that rules out vehicles with composite plastic leaf springs.

The EZ-550 designation helps identify the specific Hellwig kit, while the description’s reference to various truck makes and models signals that application is not universal. Hellwig explicitly says not to install it on vehicles with composite plastic leaf springs, a material-based boundary buyers can check before starting work. The supplied instructions mention laying helper leaves on the rear of the spring after raising the vehicle, so installation involves accessing the rear springs safely.

Skip it if you have composite plastic leaf springs; Hellwig 61912 lists a different over-axle mounting design, though its vehicle fitment still needs checking.

This EZ-550 is for truck owners whose vehicle matches the application and has compatible leaf springs. The composite-plastic exclusion is decisive; check spring material and vehicle fit before beginning its rear-spring installation.

Listed on Amazon as: Hellwig 550 EZ-550 Helper Spring Kit

#8

8. Hellwig EZ-990

• Weight: 19 lb
• Dimensions: 43 x 3 x 8 in

Best for: Multi-make EZ-990 buyers.

Why it ranks #8: The listing identifies a helper spring kit for Dodge, Ford, GM, and Toyota, but does not state a load-capacity figure or detailed vehicle applications.

The EZ-990 designation and stated Dodge, Ford, GM, and Toyota coverage give this Hellwig helper spring kit a broad make-level application profile. For shoppers seeking an established helper-spring line rather than a listed load rating, its named vehicle makes provide the clearest starting point for checking whether it suits their truck.

Hellwig identifies this as an EZ-990 Helper Spring Kit for Dodge, Ford, GM, and Toyota, which helps narrow the initial vehicle-fit search across several major makes. The supplied information does not state a load capacity or detailed installation method, so buyers should not infer either from the EZ-990 name. Hellwig’s additional facts describe its steel products as manufactured in California; confirm the specific vehicle application before planning the installation.

Skip it if you need a stated support rating before choosing; Wyckoff’s kit specifies up to 500 pounds of added capacity.

Consider this Hellwig if you own a Dodge, Ford, GM, or Toyota and are investigating an EZ-990 helper spring. The available details do not specify capacity or exact model fit, so those questions remain essential.

Listed on Amazon as: Hellwig 991 EZ-990 Helper Spring Kit

#9

9. Hellwig 1801 EZ-990

• Weight: 34 lb
• Dimensions: 43 x 2 x 7 in

Best for: Step-bracket EZ-990 setup.

Why it ranks #9: This step-bracket-style leaf kit specifies a 2.5-inch measurement, but the supplied listing does not state supported vehicles or a load-capacity figure.

A step-bracket style leaf and specified 2.5-inch dimension distinguish Hellwig’s 1801 EZ-990 kit for buyers comparing mounting configurations. This is a 34-pound helper spring kit with a named EZ-990 family, making its bracket style and vehicle-specific fitment more useful selection cues than an unstated load rating.

The step-bracket style is the defining configuration in the listing, giving buyers a concrete feature to compare when evaluating how a helper leaf fits their setup. Its stated 2.5-inch dimension and 43-by-2-by-7-inch product dimensions provide additional sizing information, while the 34-pound weight is relevant when handling components during installation. The supplied details do not give a load capacity or exact vehicle list, so those cannot be inferred from the EZ-990 designation.

Skip it if you require a stated capacity to compare kits; Hellwig 61912 lists up to 2,500 pounds for various Chevrolet and GMC applications.

The Hellwig 1801 suits shoppers specifically comparing a step-bracket EZ-990 leaf and its listed dimensions. It lacks a supplied load rating and exact application list, so confirm those details before treating it as a match.

Listed on Amazon as: Hellwig 1801 EZ-990 Helper Spring Kit, Step Bracket Style Leaf, 2.5"

#10

10. Hellwig 1250 EZ Level

• Weight: 1.4 lb

Best for: Two-inch groove fitment.

Why it ranks #10: It is identified as an EZ Level helper spring kit, but the supplied facts provide no vehicle application or load-capacity rating to guide truck fitment.

A compatible groove diameter of 2 inches gives the Hellwig 1250 EZ Level kit a concrete fitment specification for buyers checking their hardware. Its alloy-steel construction and stock size are also listed, making this a specification-led choice for owners who can match the groove measurement to their vehicle setup.

The 2-inch compatible groove diameter is the key measurement to check before selection, while the stock size identifies the listed configuration. Alloy steel is specified as the material, giving buyers a concrete construction detail when comparing kits. The product dimensions are listed as 43 by 2 by 7.5 inches, but the supplied information does not name vehicle applications or a load capacity; do not treat those dimensions as proof of fit or support level.

Skip it if you need a stated load rating; Wyckoff’s helper spring kit specifies up to 500 pounds of additional capacity.

Choose this Hellwig only if its 2-inch groove specification matches the setup you need and the stock-size configuration suits your application. The supplied listing gives no vehicle list or capacity, so those remain fitment boundaries.

Listed on Amazon as: Hellwig 1250 EZ Level Helper Spring Kit