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About Us


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World’s largest range / 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 ADJUSTER KITS IN-HOUSE SINCE 1964 (NOT JUST SOURCING IMPORTS / RE – LABELING), LONGER THAN ANY OTHER COMPANY ALLOWING TOTAL CONTROL OVER QUALITY ● ● ● ● AND RAPID / CONSTANT DESIGN IMPROVEMENTS !

IN ALL OUT – COMPETITION RACING ● ● ● ●
Results speak for themselves ● ● ● ● situations where Race Safety scrutineers –
Testing and evaluating rule (for strength and reliability) –
That only KMAC adjuster Kits are allowed to be used.

IT’S NO WONDER ● ● ● ●
ALL THE MAJOR INNOVATIVE DESIGN BREAKTHROUGHS LAST 20 YEARS HAVE BEEN DEVELOPED BY KMAC.

SEE BELOW, THE “6” BASIC VEHICLE SUSPENSIONS
ALONG WITH THE UNIQUE KMAC INNOVATIVE PATENTED DESIGNS THAT HAVE SET NEW STANDARDS FOR – STRENGTH, QUIETNESS, EASE / RANGE OF ADJUSTMENT
(and we do appreciate any constructive ideas on how we can further improve our market leadership.)

VIRTUALLY ALL OF TODAYS AUTO’S
*(Even the most exotic makes BMW ‘M’ series, Mercedes AMG / Black series, Porsche 991 Turbo)
BECAUSE OF COST SAVINGS AND THE EVER INCREASING SPEED OF OEM ASSEMBLY LINES
THE OFTEN QUOTED / RE ASSURING “FULL WHEEL ALIGNMENT ”
IS ONLY “TOE” IN / “TOE” OUT (DIRECTIONAL) ADJUSTMENT.

TRYING TO RESOLVE
COSTLY, PREMATURE EDGE TIRE WEAR BY EXCESS ADJUSTMENT ONLY ALTERS
WEAR POSITION AND ACTUALLY INCREASES OVERALL WEAR RATE ● ● ● ●

● WE SAW THE NEED THEREFORE
TO RE INSTATE FROM THE 90’s “FULL FRONT AND REAR ALIGNMENT” ● ● ● ● TO MEAN WHAT IT SAYS ( FIXING IT RIGHT THE 1st’ TIME ).

ESSENTIAL – “CAMBER” & “CASTER” TO ADJUST TIRE “CONTACT ANGLES”
CORRECT / ONLY SOLUTION TO IMPROVE TRACTION AND TIRE CONTACT AREA INSTEAD OF “EXCESS LOAD” AT TIRE EDGE CAUSING BOTH COSTLY, PREMATURE WEAR and also higher impact loads which weakens, ruptures tire wall leading to subsequent wheel rim damage.

● NO MORE REPEATED
ONGOING TRIPS TO DEALERS OR ALIGNMENT SHOPS OR CONSTANTLY CHANGING TIRE BRANDS – IN THE MISTAKEN BELIEF THAT SOMEHOW THIS COULD ALTER THIS EDGE WEAR.

● CAMBER – ADJUST FOR MORE EVEN TIRE WEAR, TRACTION, UNDERSTEER / OVERSTEER.

● CASTER – ALLOWING TO RE – ADJUST, COMPENSATE FOR THE NEW CAMBER FACILITY. Along with correctly resolving steering pull, improving hi-speed directional control, steering response, with better turn in and reducing dive / lift under brake and acceleration.

● “STRUT” ADJUSTERS
KMAC Patented design – No mods, Biggest adjustment system – Fast / Precise (from engine bay).

● “BUSH” ADJUSTERS

KMAC Patented design – Revolutionizing how adjustment is made. Biggest adjustment range- Fast / Precise (single wrench on car- no more the need for time consuming disassembly and pressing out then trial and error repositioning at a new setting – (K-MAC bushing at same time replacing highest-wearing).

● BOTH DESIGNS ALLOW ULTIMATE ADJUSTMENT accurately (under load) direct on alignment rack WITH ONGOING ADJUSTMENT CAPABILITY

● ALL KMAC KITS are supplied with instructions and bush extraction / insertion tubes where required.

NOW FINALLY WITH KMAC ” THIS ONGOING ” ADJUSTMENT CAPABILITY FOR VARYING DRIVING CONDITIONS – OWNERS EXPERIENCE IN DAY TO DAY COMMUTING….
High cambered roads, altered height / wheel squat through load carrying or lowering. Fitting wide profile tires / wheels, high mileage / worn bushings or curb knock damage. Adjusting for performance driving or in the pursuit of pole setting lap times for race days – by reducing understeer, allowing increased traction and braking response to go deeper into the corners and improving the ability to hit those corner apex’s every time !
KMAC KITS ARE BOLT – ON, NO MODIFICATIONS REQUIRED.

Both the front replacement top strut mounts and bushing kits are precisely Camber and Caster adjustable with bushings having more than twice the load bearing area of OEM.

KMAC BESIDES RE-INSTATING “ADJUSTABLE” BUSHINGS ● ● ● ●
ALSO WHERE REQUIRED K – MAC BUSHES ARE MONO BALL / 2 AXIS DESIGN.

( See below # 8 re the unique “Mono Ball” features. )

FACT : MOST “AFTER MARKET BUSHINGS” are promoted as H / Duty and “improve brake and steering response” by replacing the OEM oil filled and air voided rubber bushings with urethane.

BUT WITH TODAYS “MULTI LINK” CONTROL ARMS (with different mount angles), it is essential to retain 2 axis movement so that arms can still travel through there required suspension arcs without binding, locking up – causing undue ride harshness and can lead to even more / not less wheel hop, loss of traction and to arm breakage !

 

FOR REAR SUSPENSION ANOTHER ALTERNATIVE AVAILABLE
Is adjustable Upper Camber arms. We do not manufacture these, as they replace the top, not bottom arms. They 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 KMAC design is easily accessible (precise single wrench adjustment) and adjusted accurately (under load) direct on the alignment rack.

Note : another important feature with KMAC is “Extra toe” adjustment is “included” (not as a separate purchase). Essential to compensate for this new “Rear” Camber facility.

* SEE BELOW THE “6” BASIC TYPES OF VEHICLE SUSPENSIONS, WITH KMAC HAVING INNOVATIVE PATENTED ADJUSTER KIT DESIGNS FOR ALL SIX.

McPherson Strut Suspensions

REPLACES THE EXISTING STRUT TOP MOUNTS (NO MODIFICATIONS). REINFORCING THE STRUT TOWERS AND WITH THE UNIQUE KMAC PATENTED DESIGN PROVIDING THE BIGGEST (AND QUICKEST) ADJUSTMENT RANGE OF BOTH CAMBER AND CASTER. STREET/RACE SETTINGS CAN BE RECORDED AND CHANGED IN 30 SECONDS – JUST THE TIME TAKEN TO LOOSEN THE 3 TOP MOUNT NUTS. ANOTHER K-MAC PATENTED DESIGN FEATURE ALLOWS THIS FAST ADJUSTMENT TO BE MADE ACCURATELY UNDER LOAD.

They are available in 3 Stages:

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

STAGE 2 – (Street/Race) – KMAC “All The Features Not Found In Other Brands” …. Not steel or soft billet alloy, but the very highest aircraft 7075 grade aluminum with “extra H/duty” self align spherical bearings (self lubed – PTFE lined). These are then encased in elastomer to dampen / extend life for day to day commuter use. Separate extra H/Duty fully sealed radial thrust bearings are also incorporated – massive 85mm (3 3/8”) diameter specifically designed to take steering loads and prevent annoying spring noise through dragging/binding (plus K-MAC centers are also “replaceable” for virtual lifetime usage ). Kits are designed for minimum stack height and include OEM / Factory diameter top coil seats in alloy. Plus separate seats to take all brands of coil overs 60 to 70 mm I.D.

STAGE 3 – (Full Race) – Similar 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.

NOTE : KMAC spherical bearings like the thrust bearings are massive where possible – stage 3 are up to 1/3 bigger then all other brands .

THE UNIQUE K-MAC PATENTED DESIGN ADJUSTMENT SYSTEM FOR ABOVE KITS PROVIDES the “quickest/biggest” range (plus increased strength / support) supersedes 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, is also time-consuming to adjust and on many vehicles requires removal of the strut.

NOTE : Most brands the “single” spherical ball is also taking the steering loads.

Unlike KMAC where separate, purposely designed vertical thrust bearings are also incorporated (fully sealed – massive 85 mm diameter )

Reducing steering effort and preventing annoying noise through spring drag / binding.

Newer Strut Type Suspensions

WHERE THE UPPER MOUNT HAS NO MOUNTING STUDS.

Brought about by the OEM industry simplifying manufacturing techniques. KMAC’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.

Design for popular – 2 Bolt Flange Struts (Chapman) Suspensions – KMAC MAXI CAMB (TM)

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 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 KMAC PATENTED DESIGN ● ● ● ●

Eliminates / Supersedes the need for downsize crank bolts.

Provides 2 times the adjustment range.

Unlike crank bolts – features a fail safe / non slip lock system always maintaining and ending the frustration of Camber setting / changing!

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

A Design was required for Strut Type Suspension where there is no coil spring/strut tower clearance.

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

Where there is no adequate clearance outer diameter of coil spring to inside of strut tower for Camber and Caster travel / adjustment. KMAC again invented, patented and manufacture unique ‘Top of Strut’ kits, to provide separate Camber and Caster adjustment with original OEM coil diameter. There are also kits available for adjustable coil overs.

A Design for Ball Joint Suspensions

KMAC 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 °).

THIS KMAC DESIGN HAS NOW BECOME THE WORLDWIDE INDUSTRY STANDARD FOR WISHBONE SUSPENSION ALIGNMENT ADJUSTMENT.
LIKE ALL KMAC KITS, THEY ARE BOLT-ON AND NO SPECIAL TOOLS ARE REQUIRED.

KMAC’s challenge here was to design an Eccentric Bushing Adjuster

It is often said “ The Simplest Design Is The Best Design”. Once you get your head around this K-MAC design break-through, you realize ● ● ● ● IT IS JUST THAT !

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 TO OVERCOME THE CURRENT INACCURATE AND LABOR INTENSIVE ADJUSTER DESIGNS OVER THE LAST 40 YEARS, WHERE IT IS NECESSARY FOR TIME CONSUMING REMOVAL OF THE BUSHINGS EACH TIME FOR A SETTING CHANGE THEN THE INACCURATE TRIAL AND ERROR REPOSITIONING AT A NEW OFFSET POSITION.

THIS NEW KMAC INVENTION NOT ONLY ELIMINATING THIS TIME CONSUMING NEED FOR DISASSEMBLY AND GUESS WORK RE NEW SETTINGS – INSTEAD NOW PRECISE “SINGLE WRENCH” ADJUSTMENT ACCURATELY ON CAR (UNDER LOAD – DIRECT ON ALIGNMENT RACK).

KMAC THEREFORE HERE AGAIN SET NEW INDUSTRY STANDARDS with this design breakthrough inventing and patenting a system whereby the original size hexagon bolt head could be easily and simply rotated on vehicle to precisely adjust each bush to the required alignment setting, then locked in this position.

TO COMPLIMENT AND COMPLETE THIS “NEW BUSH ADJUSTMENT METHOD” WE DETERMINED IT WAS TIME THAT A 100% FAIL SAFE “LOCKING SYSTEM” WAS ALSO CREATED…. SECURITY OF LOCKING ESPECIALLY IMPORTANT WHEN IT COMES TO WORKING PARTS IN VEHICLE SUSPENSIONS.

For too long majority of industry locking methods in use today world wide rely on lock nuts with reverse teeth (or similar design spring washers). But they are totally dependant on friction/full tightness everytime or inevitably failure occurs.

Proudly using our long term suspension expertise we were able to research and develop a lock system not relying on friction. Once in place the ultimate result – the security of knowing a K-MAC lock nut cannot inadvertantly loosen – no matter what tension is applied.

NOTE: All above KMAC “eccentric adjuster bush kits” are also supplied with extraction / insertion tools where required to further simplify installation and are available for Audi, BMW, Mercedes etc. Virtually every make from Audi to Volvo.

SPHERICAL (MONO BALL/ 2 AXIS) “STEEL” BUSHINGS

ARE OFTEN USED TO REPLACE OEM RUBBER AND AIR VOIDED BUSHINGS to improve brake and steering response. But with small surface area and wafer thin teflon type liner, they soon pound out with subsequent looseness, metal to metal contact, noise !

KMAC THEREFORE SAW THE NEED TO SET ABOUT AND DEVELOP, DESIGN “NEW GENERATION” OF SUSPENSION BUSHINGS TO RESOLVE THIS SHORT LIFE / PREMATURE FAILURE ● ● ● ●

Result is a whole new concept – not only having the advantage of being precisely adjustable for Camber and Caster (single wrench on car), but actual load bearing area and shock absorption is also increased by more than two and a half times !

FINALLY ELIMINATING / RESOLVING THIS PREMATURE FAILURE / RESULTANT NOISE OF SPHERICAL BEARINGS THAT HAS ALWAYS PLAGUED THE INDUSTRY.

FRONT “UPPER WISHBONT” SUSPENSIONS

We saw the need for two designs allowing to importantly retain the security of OEM design – high strength forget alloy arms. Not the reliance on replacing with welded, fabricated steel arms.

REPLACEMENT INNER BUSHINGS. Precisely Camber and also Caster adjustable. Designed to install without arm or wheel removal providing up to 1.5 degree Pos or Neg. Retaining security of the OEM forget alloy arms!

COMPLETE REPLACEMENT ARMS precisely Camber and also Caster adjustable 2.5 degree Pos. or Neg. Again not welded / fabricated steel. But the security of OEM forget alloy Arms !

INNOVATION – NOT IMITATION

EXPERIENCE OF BEING THE LONGEST ESTABLISHED AND HAVING “IN-HOUSE” MANUFACTURE (NOT JUST SOURCING IMPORTS / RELABELLING) ALL COMBINES TO ALLOW BOTH TOTAL CONTROL OVER QUALITY AND RAPID / CONSTANT PRODUCT DEVELOPMENT ● ● ● ● It shows with uprated bushings for current Bentley and Rolls-Royce models. Adjuster kits for Audi through to Volvo including latest “Tesla” vehicles. Commercial Vans- Mercedes Sprinter, Vito, Iveco, Volkswagen T4, T5, T6, Crafter.

ALONG WITH PROVIDING FULL FRONT AND REAR ADJUSTMENT CAPABILITY TO SUIT :

BMW AND MERCEDES – front Camber and Caster. Rear Camber (and extra Toe) to suit all models (1968 to 2019) – Camber essential to allow to change “Tire Contact Angles” resolving costly, premature edge tire wear, improving traction. Caster to re-establish settings after Camber change, correctly resolving steering pull, improving brake and steering response.

POPULAR MUSTANG – Background is that Ford starting in 2005 redesigned the Mustang front strut towers resulting in “aftermarket” Camber and Caster kits once installed required the time consuming removal each time a ‘setting’ needed to be changed. Or the structural modification to each strut tower to gain access.

K-MAC CHANGED ALL THAT – inventing/patenting and displaying at SEMA trade show 2006 a unique system whereby a adjustable Camber and Caster strut mount could be adjusted from engine bay without modifications needed or strut removal. The actual design also providing the biggest (and quickest) adjustment range.

2005-2014   STAGE 2 (STREET/RACE)    P/N 182816-2L,    STAGE 3 (FULL RACE)   P/N 182816-3L
2015-2020   STAGE 2 (STREET/RACE)    P/N 182916-2L,    STAGE 3 (FULL RACE)   P/N 182916-3L

MUSTANG REAR-SIMILAR DESIGN BREAKTHROUGH – models 2015 to 2019. Again KMAC setting new standards-surpassing all other brands in the 2 important areas of Camber adjustment: “ FAST / TIME SAVING INSTALLATION” and “EASE OF ADJUSTMENT”.

THE PATENTED DESIGN providing for the 1st. time “easily accessible” rear adjustment – precise (single wrench) accurately under load direct on alignment rack.

DOUBLING THE EXISTING ADJUSTMENT RANGE to cater for conditions encountered in day to day commuting – high cambered roads, altered height through lowering or load carrying, fitting wide profile tires / wheels and/or curb knock damage.

TRACK DAYS – being able to adjust for maximum traction.           P/N 182926 G

SAME WITH THE 2011 ONWARDS CAMARO – also a total OEM “front strut tower” redesign eliminating 40 years of prior “mount bolts” for retaining the top strut mounts. Necessitating now the drilling of strut towers to mount “aftermarket” Camber and Caster kits then difficult access to change settings.

FOR CAMARO AGAIN THESE MODELS KMAC SHOWED THE WAY FORWARD – INVENTING AND DISPLAYING AT SEMA 2012 THE TECHNIQUE WHERE A PRECISELY ADJUSTABLE STRUT TOP ( WITH EASY ACCESS TO ADJUST BOTH CAMBER AND CASTER) COULD BE FITTED – “BOLT- ON , WITH NO DRILLING NECESSARY”.

AVAILABLE IN    (2011-2015) STAGE 2 (STREET/RACE)    P/N 202116-2L
(2015-2019)    STAGE 2 (STREET/RACE)    P/N 202216-2L
STAGE 3 (FULL RACE) P/N 202216-3L

Genuine KMAC – DON’T BE SOLD SUBSTITUTES

DOES – YOUR LOCAL DEALER KNOW ABOUT KMAC

DEALERS – YOUR CUSTOMERS EXPECT YOU TO SELL # 1