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A Suspension modification, often done by Jeep, truck, SUV and offroad enthusiasts is performed to raise the ride height of their vehicle. Suspension lifts (also referred to as lift kits or leveling kits) enable steeper approach, departure, and breakover angles, higher ground clearance, and helps accommodate larger wheels and tires. Due to the raised center of gravity, maximum safe operating angles are reduced and roadholding is often significantly impaired with a lift kit.

Kits can be as simple as lift blocks (spacers placed between the axles and leaf springs) and coil spring/strut spacers and extended shocks; to replacement control arms, trailing arms, and custom four-link systems. Suspension lifts also impact other factors, such as drive shaft length, steering geometry and brake lines. Legality is often an issue when installing suspension lifts, as many jurisdictions have varying laws on vehicle ride height and placement of lights and bumpers.


In 1978, The Boler Company, whose holdings included manufacturers of leaf springs and metal bumpers, purchased Hendrickson. In the years that followed, Hendrickson would expand into or acquire additional businesses in related areas—trailer suspension systems, auxiliary axle systems, springs, metal bumpers, and other heavy-duty components.

Eventually Hendrickson sold the truck manufacturing operation to focus solely on suspension systems and related components.

Today, Hendrickson is comprised of state-of-the-art facilities, technical centers and manufacturing centers, in the United States, Canada, Mexico, the United Kingdom, France, Austria, Romania, Turkey, India, China and Australia.

At Hendrickson, they commit to serving the transportation industry with innovative products that help improve productivity and profitability. Across the globe, their dedicated employees champion Hendrickson’s proud heritage through creativity, integrity and superior service. The Hendrickson legacy embodies 100 years as the leading innovator and manufacturer of suspension systems and components for the global heavy-duty vehicle industry.

Watson & Chalin

Watson and Chalin (W&C) is a pioneering, global suspension company that designs and manufactures durable medium and heavy-duty suspensions for the truck and trailer industries. W&C’s extensive product offering focuses on supplying original equipment manufacturers and dealers with a complete line of aftermarket suspension products and nice product development on a global scale. W&C is a One-Stop-Shop for all your suspension needs — lift axles for truck and trailer (SL and AL series), trailer air ride (TA and TI series), single point (SP series), mechanical, sub-frame assemblies and loose axles.

W&C business spans over 30 years. Acquired by the Boler Company in 2006, W&C is a brand of Hendrickson. Since then, their product range and degree of capabilities has expanded with manufacturing excellence initiatives, a state-of-the-art laboratory for new product development, and a team focused on moving the industry forward. W&C has the same goals as fleet owners and operators — to reduce maintenance and extend service intervals.

W&C’s operational excellence is guided by leadership principles in product development, quality workmanship, on time delivery, and is backed by one of the best warranties in the business. With this philosophy, W&C will create and sustain added value for their customers in the heavy-duty commercial vehicle industry.

Superlift Suspension

Looking to run larger tires and gain ground clearance on your Jeep, Truck or SUV? Superlift Suspension has lift and leveling kits to satisfy all your suspension needs for Chevrolet, Dodge, Ford, GMC, Jeep, Mazda, Nissan, and Toyota. Superlift Suspension Lift Kits and Leveling Kits are known for their legendary quality, industry award winning design and “best in class” value. They stand behind their products with their Limited Lifetime Warranty, Satisfaction Guarantee and phenomenal customer service, unmatched in the off-road suspension and lift kit industry. Superlift has always been, is now, and always will be The Off-Road Original.


  • SuperSprings are manufactured from high-grade steel, shot peened to relieve spring stress, and extend product life.
  • The shackle has an inner roller and an outer roller. As the factory springs extend to the rear, the roller facilitates the movement.
  • Installations can be completed in less than an hour, and does not require disassembly of factory spring assemblies.
  • Automatically activates as loads are applied. They work when they need to without the need for manual adjustments.
  • Reduce rear end sag and sway without compromising ride quality. Supersprings reduce body roll and provide greater driver control.
  • Work in conjunction with original equipment rear leaf spring suspension systems. They enhance the total suspension system.

SuperSprings are a unique and patented self-adjusting suspension stabilizing system for vehicles with rear leaf springs, designed to level loads and reduce body roll. SuperSprings provide users extra load support and reduce body roll without compromising ride quality. They are manufactured using a variety of different sized springs to support multiple applications. All SuperSprings are manufactured in the U.S.A. from SAE5160H high grade, shot peened steel. 

Silent Drive


In today’s trucking industry, Silent Drive knows their customers have many choices. In order for us to earn and retain their business, they have to be better at what they do than their competition.

Silent Drive Inc. has been in the suspension business since 1972. They are a family-owned and operated company that offers customized lift axles plus a variety of ready to ship lift axles for tag and pusher use, with their specialty suspension being the “Maxle”.

Silent Drive’s intent was to offer the Midwest a source for their pusher and tag axle needs. Since then, their reputation for a quality product at a fair price has carried their business across the United States and into Canada.

Their experience, adaptability, innovative leadership, and commitment to quality keeps Silent Drive one step ahead of the competition. Unitizing the suspension to an axle, high pivot points, under-arm air spring lifts, and replacing rubber bushings with their patented “Uroflex” bushings are just a few of the improvements that Silent Drive has brought to the suspension industry.

N E Way

When you Demand the best in Durability and Roll Stability, go with NEWAY. NEWAY’s Air-Ride Suspension is available in two distinct types:

The ADZ - Heavy-Duty Drive Axle Air Suspension

From the company that pioneered air-ride suspensions for the heavy-duty truck market over fifty years ago comes the most innovative in air-ride suspension technology. The industry’s toughest air-ride suspension, now with new design versatility, making it light enough for over-the-road applications, and much more:

  • Concrete – You need a stable suspension for high center of gravity loads.   You also want it to weigh less so you can carry more.
  • Construction – You need a stable suspension for shifting loads.  You also want reliability and a strong warranty to back it up.
  • Fire Response – You need a stable suspension for shifting water and ladders while cornering.  You need a durable suspension that can last.
  • Heavy Haul – You need a stable suspension for extreme loads.   You also want to reduce maintenance to a minimum.  Your trucks need to be working.
  • Logging – You need a stable suspension with good articulation that can grip rutted, muddy roads.  You also want it to weigh less so you can carry more.
  • Mining – You need a stable suspension for steep grades and shifting loads.  You also want it to weigh less so you can carry more.
  • Municipal – Your budget is tight, so you want to reduce maintenance costs.  You also want reliability and a strong warranty to back it up.
  • Oil & Gas – You need a durable suspension that offers enhanced roll stability for extreme loads.

The LSZ - Steerable Lift Axle Truck Suspensions

The innovative NEWAY LSZ Series includes two suspension models that are both designed to bring the greatest number of industry “Best-in-Class” features available in truck/tractor auxiliary lift axles, including durability and compact package size.

  • Specify with air disks brakes on both models for enhanced braking performance and reduced maintenance.
  • Frame hanger with flat design accommodates bolt hole pattern flexibility.
  • Design offers enhanced durability, while the wide beam center design provides increased stability with high ground clearance. The 13k model features a robust, fabricated bent tube axle with Best-in-Class driveline clearance.
  • Tuned steering damper systems minimize wheel wobble for increased safety and provides powerful self-centering when lifting.
  • Patented angled air spring design distributes forces directly to frame for superior stability and wheel support.
  • Custom rolling lobe air spring provides superior ride performance over typical convoluted air springs.
  • By far the smallest package size in the industry.
  • Best-In-Class lift speed and reliability.
  • Design eliminates thrust bearings. No drilling, reaming, or shimming maintenance necessary.