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Helper Spring

SL Helper Spring SL8021902381
Helper Spring, Set of 2 SKU No.:SL8021902381
(0 reviews)
$81.77
  • Quantity Sold
  • Set of 2
SL Helper Spring SL8021902373
Helper Spring, Set of 2 SKU No.:SL8021902373
(0 reviews)
$85.23
  • Quantity Sold
  • Set of 2
SL Helper Spring SL8021902375
Helper Spring, Set of 2 SKU No.:SL8021902375
(0 reviews)
$219.55
  • Quantity Sold
  • Set of 2
SL Helper Spring SL8021902376
Helper Spring, Set of 2 SKU No.:SL8021902376
(0 reviews)
$181.63
  • Quantity Sold
  • Set of 2
SL Helper Spring SL8021902378
Helper Spring, Set of 2 SKU No.:SL8021902378
(0 reviews)
$94.24
  • Notes
  • For use with TRD; Pre-Runner with Off-Road Suspension; Base Model without Traction Control
  • Quantity Sold
  • Set of 2
SL Helper Spring SL8021902379
Helper Spring, Set of 2 SKU No.:SL8021902379
(0 reviews)
$95.36
  • Notes
  • Bolt on the Top of the Factory Leaf Pack Underneath the Axle U-Bolts; Powdercoated
  • Quantity Sold
  • Set of 2
SL Helper Spring SL8021902380
Helper Spring, Set of 2 SKU No.:SL8021902380
(0 reviews)
$112.21
  • Quantity Sold
  • Set of 2
SL Helper Spring SL8021902382
Helper Spring, Set of 2 SKU No.:SL8021902382
(0 reviews)
$74.91
  • Quantity Sold
  • Set of 2
SL Helper Spring SL8021902383 Front Or Rear
Front or Rear Helper Spring, Set of 2 SKU No.:SL8021902383
(0 reviews)
$53.56
  • Location
  • Front Or Rear
  • Notes
  • 1-1.5 in. Lift
  • Quantity Sold
  • Set of 2
SL Helper Spring SL8021902384 Rear
Rear Helper Spring, Set of 2 SKU No.:SL8021902384
(0 reviews)
$125.24
  • Location
  • Rear
  • Notes
  • 1-1.5 in. Lift
  • Quantity Sold
  • Set of 2
SL Helper Spring SL8021902385 Rear, Driver And Passenger Side
Rear, Driver and Passenger Side Helper Spring, Set of 2 SKU No.:SL8021902385
(0 reviews)
$41.61
  • Location
  • Rear, Driver And Passenger Side
  • Notes
  • 2 in. lift
  • Quantity Sold
  • Set of 2
Hellwig Helper Spring H63550
Helper Spring, Set of 2 SKU No.:H63550
(5 reviews)
$69.81
  • Quantity Sold
  • Set of 2
  • Warranty
  • Million-mile Hellwig limited warranty
Hellwig Helper Spring H63985
Helper Spring, Set of 2 SKU No.:H63985
(3 reviews)
$116.79
  • Quantity Sold
  • Set of 2
  • Warranty
  • Lifetime Hellwig limited warranty
Hellwig Helper Spring H63991
Helper Spring, Set of 2 SKU No.:H63991
(5 reviews)
$108.09
  • Quantity Sold
  • Set of 2
  • Warranty
  • Million-mile Hellwig limited warranty
Hellwig Helper Spring H633527
Helper Spring, Set of 2 SKU No.:H633527
(1 review)
$324.41
  • Notes
  • Requires Hellwig mounting kit #25250 for vehicles equipped with 2.5 in. wide leaf springs or #25300 for vehicles with 3 in. wide springs.
  • Quantity Sold
  • Set of 2
  • Warranty
  • Million-mile Hellwig limited warranty
Hellwig Helper Spring H6361607
Helper Spring, Set of 2 SKU No.:H6361607
(0 reviews)
$244.64
  • Series
  • Hellwig Pro
  • Notes
  • Except Heritage Edition
  • Quantity Sold
  • Set of 2
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Helper Spring Articles





  • In the world of motoring, the importance of balance over power can't be further stressed. Without balance, a powerful car can roll or skid out of control and get in serious trouble. That's why race drivers and professional mechanics put a premium on quality suspension.In racing, most cars are tuned for performance, meaning they're equipped with a stiff suspension that provides superb handling at the expense of riding comfort. For street cars, however, a balance between handling and comfort is ideal. That's what the helper spring is for.The spring helps a car handle extra loads and the rough weight transitions involved when driving at the limits. The main spring does its work as usual when driving with little load or cruising along at average speeds. Once you start loading up on passengers and cargo, or when you floor the throttle, the helper spring kicks in to help keep your car in balance.It's one of the most reliable suspension upgrades possible. You'll find a wide variety of helper springs here at Carparts.


    • Helps support excess loads

    • Improves overall balance and performance

    • Guarantees that suspension system reliably supports your car

  • How to Install a Helper Spring in 4 Steps

    Your vehicle may lead you from one place to another but if it cannot carry enough load for your driving and cruising needs, then your auto is only as good as a thirsty camel. However, with the installation of an efficient helper spring, your car will be able to bear and withstand a greater load-carrying capacity. So if you find your springs in bad condition or you simply want to install one for your auto, then here is a four-step fix to your helper spring problem.

    Required skill level: Novice

    Needed tools and materials

    1. Jack and jack stands
    2. Wrenches
    3. Ratchet and socket set
    4. Tire iron
    5. Safety glasses
    6. Gloves

    Preparation for the helper spring's installation

    First, lift the rear of your vehicle using the jack and secure it with the jack stands. Afterwards, detach the rear wheels using the tire iron.

    Locating the place for installation

    Once the wheels are detached, position yourself in front of the rear suspension. As you can see, the helper spring should be bolted on the top of the leaf spring pack. So, carefully install the new spring in such a way that the curled ends of the part are pointed up. The bolts should be loosely settled in position in preparation for the final step.

    Tightening the bolts

    Now using the ratchet and socket, tighten the bolts. You may install a second bolt as an additional safety measure to provide better security. Do not forget to torque the bolts into place before reinstalling the wheels.

    Reinstalling the wheels

    Finally, you may now reinstall the rear wheels with the tire iron. Lower the auto mobile off the stands and your vehicle is now built to allow greater load capacity. Give your vehicle a run to check if the springs were installed properly.

    Tips and warnings

    • When working with your auto, be sure to always wear safety glasses. The underside of your vehicle may contain rust or debris that may damage your eyes.
    • Additionally, wearing gloves will not only provide you a safety measure against rusting parts but also provide you a better grip with the tools.