Helper Spring Kit | SuperSprings | Rear Axle | 3300 lbs. Capacity

SKU SSA39

SuperSprings Helper Spring Kit SSA39 for the Isuzu NPR, NPR-HD, Chevy, GMC W3500, W4500, W5500 Forward and Tiltmaster and Mitsubishi Fuso FE120 and FE180 improve driver control by drastically reducing sag and sway while maintaining a nice, smooth ride. SuperSprings work in conjunction with the factory spring pack and adjust automatically to accommodate different load and road conditions.

Read Reviews

$648.99 Free Ship!

Qty Spin Up Spin Down

Product Specifications

Location: Fits Rear Axle
Capacity:3,300 lbs.
Height:0.630 inches
Width:3.00 inches

Typically ships in 1 business day.

Product Specs for SuperSprings SSA39

Location: Fits Rear Axle
Capacity:3,300 lbs.
Height:0.630 inches
Width:3.00 inches
Length:43.00 inches
Instructions:SuperSprings SSA39 Installation Instructions.
Note:Includes all mounting hardware.
MPN: SSA39

Ask an Expert

customer service Our Michigan based experts can help.

1.800.358.4751
Email

Hours

M-F 7:00AM - 11:00PM EST

Sat 8:00AM - 1:00PM EST

SuperSprings SSA39 Details

SuperSpring Helper Springs

SuperSprings are patented self-adjusting suspension stabilizers engineered for vehicle with leaf spring rear suspension systems. SuperSprings by design provide users extra load capacity and additional vehicle handling and control, both without significantly hardening the ride.

SuperSprings simply install right over a vehicle’s rear leaf springs. They work in parallel with a vehicle’s existing suspension system and “kick-in” as needed. The increase in load carrying capacity delivered by installing SuperSpring helper springs helps eliminate vehicle rear-end sag and improves towing capabilities.

SuperSprings unique anti-sway feature reduces body roll providing enhanced driver control which can make the difference when entering a sharp turn or during an emergency panic over-correction situation. This is accomplished by SuperSprings patented tapered spring blade and rolling shackles. Feel the SuperSprings difference, whether hauling a heavy load, towing or just want the handling benefits that come with a more stable, secure and controllable ride.

each kit Includes a pair of SuperSprings. One kit does both sides of the vehicle.

Features & Benefits

Maintains a smooth ride whether your vehicle is loaded or unloaded
Reduce sag and sway while maintaining a nice, smooth ride.
Reduces factory springs lateral twisting thereby reducing vehicle body roll.
Installation time for SuperSprings with power tools is no more than 60 minutes.
Independent tests showed SuperSprings improve driver control by 30%
Patented “Pivoting and Rolling Shackle”
Works with existing springs
Limited Lifetime Warranty
Maintenance free

Vehicle Application Guide for SuperSprings SSA39

The SSA39 Helper Spring Kit | SuperSprings | Rear Axle | 3300 lbs. Capacity is engineered to work with specific vehicles displayed below. Can't find your vehicle, or need assistance, please give us a call at 1-800-358-4751 or 1-989-755-0561. Browse the category SuperSprings to view all vehicle makes and models.

Chevrolet
GMC
Isuzu
Mitsubishi Fuso

Year	Make	Model	Vehicle Option	Installation Notes
2005	Mitsubishi Fuso	FE180		May be used on trucks equipped with top overload spring.
2006	Mitsubishi Fuso	FE180		May be used on trucks equipped with top overload spring.
2007	Mitsubishi Fuso	FE180		May be used on trucks equipped with top overload spring.
2010	Mitsubishi Fuso	FE180		May be used on trucks equipped with top overload spring.
2011	Mitsubishi Fuso	FE180		May be used on trucks equipped with top overload spring.
2008	Mitsubishi Fuso	FE180		May be used on trucks equipped with top overload spring.
2009	Mitsubishi Fuso	FE180		May be used on trucks equipped with top overload spring.
2008	Chevrolet	W3500 Tiltmaster		May be used on trucks equipped with top overload spring.
2000	Chevrolet	W3500 Tiltmaster		May be used on trucks equipped with top overload spring.
2001	Chevrolet	W3500 Tiltmaster		May be used on trucks equipped with top overload spring.
2002	Chevrolet	W3500 Tiltmaster		May be used on trucks equipped with top overload spring.
2003	Chevrolet	W3500 Tiltmaster		May be used on trucks equipped with top overload spring.
2004	Chevrolet	W3500 Tiltmaster		May be used on trucks equipped with top overload spring.
2005	Chevrolet	W3500 Tiltmaster		May be used on trucks equipped with top overload spring.
2006	Chevrolet	W3500 Tiltmaster		May be used on trucks equipped with top overload spring.
2007	Chevrolet	W3500 Tiltmaster		May be used on trucks equipped with top overload spring.
2000	GMC	W3500 Forward		May be used on trucks equipped with top overload spring.
2001	GMC	W3500 Forward		May be used on trucks equipped with top overload spring.
2002	GMC	W3500 Forward		May be used on trucks equipped with top overload spring.
2003	GMC	W3500 Forward		May be used on trucks equipped with top overload spring.
2004	GMC	W3500 Forward		May be used on trucks equipped with top overload spring.
2005	GMC	W3500 Forward		May be used on trucks equipped with top overload spring.
2006	GMC	W3500 Forward		May be used on trucks equipped with top overload spring.
2007	GMC	W3500 Forward		May be used on trucks equipped with top overload spring.
2008	GMC	W3500 Forward		May be used on trucks equipped with top overload spring.
2000	Chevrolet	W4500 Tiltmaster		May be used on trucks equipped with top overload spring.
2001	Chevrolet	W4500 Tiltmaster		May be used on trucks equipped with top overload spring.
2002	Chevrolet	W4500 Tiltmaster		May be used on trucks equipped with top overload spring.
2003	Chevrolet	W4500 Tiltmaster		May be used on trucks equipped with top overload spring.
2004	Chevrolet	W4500 Tiltmaster		May be used on trucks equipped with top overload spring.
2005	Chevrolet	W4500 Tiltmaster		May be used on trucks equipped with top overload spring.
2006	Chevrolet	W4500 Tiltmaster		May be used on trucks equipped with top overload spring.
2007	Chevrolet	W4500 Tiltmaster		May be used on trucks equipped with top overload spring.
2008	Chevrolet	W4500 Tiltmaster		May be used on trucks equipped with top overload spring.
2009	Chevrolet	W4500 Tiltmaster		May be used on trucks equipped with top overload spring.
2010	Chevrolet	W4500 Tiltmaster		May be used on trucks equipped with top overload spring.
2009	GMC	W4500 Forward		May be used on trucks equipped with top overload spring.
2010	GMC	W4500 Forward		May be used on trucks equipped with top overload spring.
2008	GMC	W4500 Forward		May be used on trucks equipped with top overload spring.
2000	GMC	W4500 Forward		May be used on trucks equipped with top overload spring.
2001	GMC	W4500 Forward		May be used on trucks equipped with top overload spring.
2002	GMC	W4500 Forward		May be used on trucks equipped with top overload spring.
2003	GMC	W4500 Forward		May be used on trucks equipped with top overload spring.
2004	GMC	W4500 Forward		May be used on trucks equipped with top overload spring.
2005	GMC	W4500 Forward		May be used on trucks equipped with top overload spring.
2006	GMC	W4500 Forward		May be used on trucks equipped with top overload spring.
2007	GMC	W4500 Forward		May be used on trucks equipped with top overload spring.
2008	Chevrolet	W5500 Tiltmaster		May be used on trucks equipped with top overload spring.
2004	Chevrolet	W5500 Tiltmaster		May be used on trucks equipped with top overload spring.
2005	Chevrolet	W5500 Tiltmaster		May be used on trucks equipped with top overload spring.
2006	Chevrolet	W5500 Tiltmaster		May be used on trucks equipped with top overload spring.
2007	Chevrolet	W5500 Tiltmaster		May be used on trucks equipped with top overload spring.
2000	Chevrolet	W5500 Tiltmaster		May be used on trucks equipped with top overload spring.
2001	Chevrolet	W5500 Tiltmaster		May be used on trucks equipped with top overload spring.
2002	Chevrolet	W5500 Tiltmaster		May be used on trucks equipped with top overload spring.
2003	Chevrolet	W5500 Tiltmaster		May be used on trucks equipped with top overload spring.
2009	Chevrolet	W5500 Tiltmaster		May be used on trucks equipped with top overload spring.
2009	GMC	W5500 Forward		May be used on trucks equipped with top overload spring.
2004	GMC	W5500 Forward		May be used on trucks equipped with top overload spring.
2005	GMC	W5500 Forward		May be used on trucks equipped with top overload spring.
2006	GMC	W5500 Forward		May be used on trucks equipped with top overload spring.
2007	GMC	W5500 Forward		May be used on trucks equipped with top overload spring.
2000	GMC	W5500 Forward		May be used on trucks equipped with top overload spring.
2008	GMC	W5500 Forward		May be used on trucks equipped with top overload spring.
2001	GMC	W5500 Forward		May be used on trucks equipped with top overload spring.
2002	GMC	W5500 Forward		May be used on trucks equipped with top overload spring.
2003	GMC	W5500 Forward		May be used on trucks equipped with top overload spring.
2013	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2014	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2015	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2016	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2017	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2018	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2000	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2001	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2002	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2003	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2004	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2005	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2006	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2007	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2008	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2009	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2010	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2011	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.
2012	Isuzu	NPR	Fits 2 Wheel Drive	May be used on trucks equipped with top overload spring.

Customer Q&A - SuperSprings SSA39

Ask A Question

SuperSprings

SuperSprings International was founded in 1996 and has developed a patented line of self-adjusting suspension stabilizers that solve many of the handling and suspension problems associated with loads carried by passenger vans, pickup trucks, minivans, and SUVs.

SuperSprings Internationals products give users extra loading and towing capacity and prevent rear-end sag without hardening the ride on vehicles having leaf spring rear suspension systems.

SuperSprings was developed for the American market with production initially established in California to serve the market on the West Coast. Marketing efforts have continued to expand and SuperSprings Helper Springs and SuperSway sway control are now distributed through a national dealer and distributor network throughout North America.

Product applications for SuperSprings have evolved from being solely for pickup trucks to a broad cross section of vehicles including SUVs, 15 passenger vans, minivans, and RVs including Class C motor homes and campers. SuperSprings have also been accepted by large-scale manufacturers in the van conversion business.

For more information, visit SuperSprings.

SuperSprings Warranty

5 Year Limited Warranty

On all SuperSprings products installed on non-commercial applications.

3 Year Limited Warranty

On all SuperSprings products installed on commercial applications, on all SumoSpring products and on all SuperCoils products.

2 Year Limited Warranty

On all SuperSway-Stops products.

What the warranty does not cover

Vehicle use in excess of GVWR, combined vehicle weights/ tow ratings or other OEM design specifications or limitations. Normal wear and tear, deterioration of spring shape or rating, alteration, product modification, improper installation or failure to maintain. Scratches or defects in product finishes (powder coating, paint, etc.) or damage due to shipping. Abnormal or misuse, including products used other than as recommended in the current SuperSprings™ application guide or the instructions. Racing or other vehicle competitions or contests. Accidents, impact by rocks, trees, obstacles or other aspects of the environment. Heavily loaded commercial use on unpaved road conditions.

You can view the full details of SuperSpring ’s warranty here.

How to get service

If a SuperSpring product fails as a result of a manufacturer defect, contact us at Michigan Truck Spring for support. You can contact us by phone at 1-800-358-4751 or by using our contact form.