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About us

mechanic_picThe World’s largest range and longest established, most experienced adjustable “Strut Tops” and “Bushing kit” manufacturers!

With some of the best suspension talent in the industry, we have been designing, manufacturing (not just sourcing imports / re-labeling). This allowing total control over quality and also rapid / constant design improvements.

It’s no wonder all the major innovative design breakthroughs have been developed by k-mac.com. In all out competition racing results speak for themselves….Situations where race safety scrutineers insist (for strength and reliability) that only k-mac.com adjuster kits are allowed to be used.

*SEE BELOW, THE “6” BASIC VEHICLE SUSPENSIONS AND THE k-mac.com INNOVATIVE PATENTED DESIGNS THAT HAVE SET NEW STANDARDS FOR STRENGTH, RANGE / EASE OF ADJUSTMENT AND INSTALLATION.

Virtually all today’s Autos (because of cost cutting and the ever increasing speed of OEM assembly lines) only have “Toe” in / “Toe” out – fine tuning wheel adjustment from the straight ahead position. Trying to resolve costly, premature edge tire wear by excess adjustment only alters wear position and actually increases overall wear rate!

Besides adjusting Toe – the other suggested procedure is to wear down the other edge by rotating tires!

We saw the need therefore to reinstate “FULL FRONT AND REAR ALIGNMENT” … TO MEAN WHAT IT SAYS (fixing it right the 1st time).

No more repeated, ongoing trips to dealers, alignment shops or constantly changing tire brands.

CAMBER – Essential to change “tire contact angle”. A proper solution to allow more even tire wear and traction.

CASTER – Correctly resolving steering pull, improving hi-speed directional control, steering response and reducing dive / lift under brake and acceleration.

“Strut” Adjusters – Fast/Precise from engine bay.

“Bush” Adjusters – Fast/Precise (single wrench) at same time replacing highest-wearing bushings.

Both designs allow adjustment accurately (under load) direct on alignment rack.

All k-mac.com kits are supplied with instructions and bush extraction / insertion tubes where required.

“Ongoing” adjustment capability for varying individual driving conditions owners can experience….

Altering height, load carrying, sagged suspension, high cambered roads, fitting wide profile tires/wheels, curb knock damage or adjusting for performance driving / reducing understeer on Race days – allowing to go deeper into the corners with increased traction and braking response.

k-mac.com kits are all bolt-on, no modifications required. Both the front replacement top strut mounts and bushing kits are precisely Camber and Caster adjustable. Bushings have twice the load bearing area of parts from the OEM and at the same time replace the highest-wearing bushes. Also importantly they are 2-axis / self-aligning without the OEM air voids resulting in improved braking and steering response.

Most “aftermarket” bushes only delete the air voids – which can prevent today’s vehicles’ multi link / angled suspension arms travelling through their required arcs, causing undue harshness, binding / locking up and lead to “even more” wheel hop / loss of traction.

FOR REAR SUSPENSION ANOTHER ALTERNATIVE AVAILABLE is adjustable Camber arms. We do not manufacture these as they replace the top not bottom arms. These are difficult to access, adjust and to resolve premature inner edge tire wear need to move the top of tire outwards, reducing the all-important clearance to outer fender. While the k-mac.com design is easily accessible (precise single wrench adjustment) and adjusted accurately (under load) direct on the alignment rack. Also with k-mac.com an “extra Toe” adjustment is included to compensate for this new Camber facility.

LISTED BELOW ARE THE 6 BASIC TYPES OF VEHICLE SUSPENSIONS, WITH k-mac.com HAVING INNOVATIVE PATENTED ADJUSTER KIT DESIGNS FOR FOR ALL 6.

1. McPherson Strut Suspensions

11Bolt-On kits that simply replace the upper strut mounts, quickest and biggest adjustment (change to street or race settings in 30 seconds – just the time taken to loosen the 3 strut tower mount nuts).

They are available in 3 Stages :

Stage 1 (Street)- Steel with elastomer bushed centers and “captive” ball race thrust bearings.

Stage 2 (Street / Race) – All alloy k-mac.com use ultimate hi-strength aircraft grade 7075 aluminum with extra H/Duty self align spherical bearings (self lubed – PTFE lined) encased in elastomer for extended life / commuter usage.
With k-mac.com centers are also replaceable for virtual lifetime usage. Kits are designed to fit with factory / OEM diameter springs or smaller (60-70mm) O.D. Coil Overs. Another k-mac.com feature – Separate H/Duty radial thrust bearings are included for “Steering Loads”!

Stage 3 (Full Race)- Similar features to Stage 2 but no Elastomer / Flex – for tauter / quicker steering response times, more effective shock control! – specifically for full race applications where ride harshness and durability are not the criteria.

This k-mac.com system, by providing the quickest / biggest adjustment (plus increased strength / support) supercedes the current industry standard which has been around for years – a non flexible ‘slot’ design with spherical bearings.

This slot design, besides having less adjustment because of the need for access to the hold down bolts, also is time consuming to adjust and on many vehicles requires removal of the strut.

 

 

2. Newer Strut Type Suspensions

22 WHERE THE UPPER MOUNT HAS NO MOUNTING STUDS.

Brought about by the OEM industry simplifying manufacturing techniques. k-mac.com’s design challenge here was to design, develop a system whereby substantial adjustment could be made to change both Camber and Caster settings simply and accurately yet (because of the limited accessibility) without the need for any structural modifications.

 

 

3. Design for popular – ‘2’ Bolt Flange Struts (Chapman) Suspensions – k-mac.com MAXI CAMB (TM)

33

CAMBER KITS CURRENTLY ON THE MARKET FOR THESE TYPE STRUTS ARE CALLED “CRANK BOLTS” – WHICH IS AN OFFSET BOLT DESIGN. BASICALLY ONE OF THE 2 CRITICAL BOLTS THAT HOLD THE STUB AXLE / WHEELS ON IS DOWNSIZED!

For example a 14mm bolt is replaced by a 12mm crank shape bolt – this 2mm reduction is then used to gain adjustment.

This undersized / weakened crank bolt design was rejected by k-mac.com as these 2 bolts are a critical suspension component, (holding the stub axle / wheels on) and the new car industry isn’t noted for oversizing componentry!.

Instead the k-mac.com patented design…

  • Eliminates / Supercedes the need for downsize crank bolts.
  • Provides ‘3’ times the adjusment range.
  • Unlike crank bolts – features a fail safe / non slip lock system always maintaining and ending the frustration of Camber setting changing! changing!.

Just 3 k-mac.com MAXI CAMB Part No’s cover over 300 makes and models of this popular Front and Rear Suspension “2 Bolt Flange” Strut System.

 

4. A Design also for Strut Type Suspension where no Coil Spring/Strut Tower Clearance.

44Honda / Acura, Civic, CRV, Element, Integra and Odyssey (‘Strut’ front suspensions). Like earlier models, they have no Camber or Caster adjustment ex-factory.

Also these latter models there is no adequate clearance outer diameter of coil spring to inside of strut tower for Camber and Caster travel / adjustment. k-mac.com again invented, patented and manufacture unique ‘Top of Strut’ kits, to provide separate Camber and Caster adjustment with original OEM coil diameter. Also kits available for adjustable coil overs.

 

5. A Design was for Ball Joint Suspensions

55k-mac.com REVOLUTIONIZED THE ADJUSTMENT OF THIS TYPE OF (DOUBLE WISHBONE) SUSPENSION BY INVENTING AND PATENTING A UNIQUE SLOT SYSTEM, WHEREBY AN ACTUAL BALL JOINT COULD BE ADJUSTED IN OR OUT TO VARY CAMBER SETTINGS (BY UP TO 3 OR 4 DEGREES).

This k-mac.com design has now become worldwide the industry standard for wishbone suspension alignment adjustment.

Like all k-mac.com kits, they are bolt-on and no special tools are required.

 

6. k-mac.com’s challenge was for an Eccentric Adjuster

66 A SIMPLE METHOD WAS REQUIRED FOR THE NUMEROUS PIVOTED BUSH CONNECTION POINTS FOUND THROUGHOUT VEHICLE SUSPENSION SYSTEMS, SO THAT FRONT CAMBER AND CASTER OR REAR CAMBER AND TOE COULD BE ADJUSTED EASILY, UNLIKE THE CURRENT LABOR INTENSIVE ADJUSTER DESIGNS OVER THE LAST 40 YEARS, WHERE IT IS NECESSARY FOR TIME CONSUMING REMOVAL AND REPLACEMENT OF THE BUSHINGS EACH TIME TO CHANGE A SETTING.

k-mac.com therefore again set new industry standards with another design breakthrough by designing inventing and patenting a system whereby the original size hexagon bolt head could be simply rotated on vehicle to precisely adjust the bush to the required alignment setting, then locked in this position.

This labour saving system was accomplished by the concept of the bolt being designed in such a way that it interlocked with the steel eccentric inner bush – turning the easily accessible bolt head adjusted the alignment setting.

All above k-mac.com “eccentric adjuster bush kits” are supplied with extraction / insertion tools where required to further simplify installation and are available for over one hundred models- Audi, BMW, Mercedes etc. Virtually every make from Audi to Volvo.

 

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