MTKT | SuperSprings Universal Mounting Kit
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Helper Spring Mounting Kit | SuperSprings


$89.99 Free Ship!
2 In Stock as of 1/26/2022 7:13:07 PM EST.

SuperSprings Universal Mounting Kit (Required when leaf springs are located above the axle)

Product Specs for SuperSprings MTKT

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SuperSprings MTKT Details

The SuperSprings mounting kit is typically used on all vehicles with leaf springs positioned above their axle. However, there are some exceptions to this rule; specifically,

  • Vehicles equipped with a factory overload spring above the main spring pack
  • Ford F250’s and F350 with no factory overloads
  • Ford E350’s
  • Some Dodge 2500’s

Our Shop by vehicle will display if a mounting kit is required for your specific vehicle.

The SuperSprings mounting kit consists of the following components:

Mounting Bracket – 2
U-Bolts – 4
Cross Plate – 4
Washers – 8
Nylok Nut – 8
Hold-Down Clamp – 2 with accessories:
Bolt – 2
Washer – 4
Nut - 2

What it does:

The mounting kit has one simple function; to induce minimal preload tension onto the installed SuperSpring. This is done to ensure that when the upfitted vehicle is unloaded, the SuperSprings operate silently.

The 2" tall mounting brackets act as fulcrum points on the underside of the SuperSpring and the shackles at each end of the springs secure it in place; pivoting as load is transferred to the springs. The mounting brackets are bolting to the vehicle spring pack on either end using the u-bolts, cross plates, washers and nuts provided. All nuts provided are nylok self-locking and will not loosen when correctly installed. When tightening these nuts simply "snug" them securely. Over-tightening might have the effect of marginally stiffening the vehicles ride.

Mounting kit options?

SuperSprings produces a single generic model mounting kit that fits all specified applications. The standard leg-length of the u-bolts provided is 4" long. If your vehicles spring pack has had extra leaves added you might require longer u-bolts to complete the installation. Also, some older Chevrolet ¾ ton and 1 ton models have thicker spring packs that require our longer U-bolts. We do keep a supply of 5 ¼" leg-length U-bolts.  Measure the height of your spring pack directly above the axle. If this measurement is greater than 3 ½" you will need longer U-bolts.

Customer Q&A - SuperSprings MTKT


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.

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