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25% Off Select Parts and Accessories
Receive 25% Off Your Online or In-Store Purchase. Use promotional code MMJ25 at checkout to receive discount. Not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included will be displayed in product search results and product detail pages. INCLUDES the following categories: Starters, Alternators, Fuel Pumps, Radiators, Shocks & Struts, Chassis, CV Axles, Batteries, Ignition, Window Motors, Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Headlamps and Bulbs. Excludes the following brands: Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner and BBK Performance. Valid online until 2:59 am EST on 5/1/17.

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  • Part #: 11-1030|
  • SKU: 9651634

Available today

Pay in Store Available

    • For leaf springs up to 2-1/2" wide.
    • Mounting hardware included. Mount just behind the axle going back.
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Superior Automotive Overleaf Helper Springs

Overleaf Spring Assist, Increase level load carrying capacity by approximately 1,000 lbs. with one pair. Add additional capacity by 1,500 lbs. or more with two pair. (Sold Separately), Hardware included.
  • For leaf springs up to 2-1/2" wide.
  • Mounting hardware included. Mount just behind the axle going back.
  • A second set may be added in front of the axle going forward as clearance allows.
  • Read instructions carefully before installing this item.


Superior Automotive Overleaf Helper Springs is rated 4.8 out of 5 by 4.
Rated 5 out of 5 by from Helper springs I carry a lot of weight on my truck all the time it helps a lot I have more control on the wheels
Date published: 2016-12-18
Rated 5 out of 5 by from It corrected a lean. My 1963 Ford Falcon has old leaf springs and it sat about one inch low on the driver’s side. I thought that adding a single helper spring to the left leaf spring might straighten the car and bought a pair of Made in China “Superior Automotive Overleaf Helper Springs”, Part #11-1030. See: “For leaf springs 1.75” to 2.5” wide (mine are 2” wide). Helps eliminate sagging springs due to additional weight capacity. Will provide approximately 1” lift in rear when not loaded.” I jacked up the left rear of the car and installed one of the helper springs on the left leaf spring. The the new helper spring made the ride a little bit more firm. I measured the height to the fenders and found 19” on the left and 19 ¼” on the right. The difference is barely noticeable. The helper spring leveled the car and it does not lean to one side anymore..
Date published: 2016-12-06
Rated 5 out of 5 by from Just what I needed Needed a little extra help in back of my '98 jeep in order to haul a load of camping equipment and firewood. These gave the little extra 'oomph' I needed and at a great price.
Date published: 2016-08-10
Rated 4 out of 5 by from easy install it was easer to install then what I thought . It gave my midsize truck the extra pay load I needed. Easy fix.
Date published: 2014-11-18
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