Search Results for: rear lca

Xtreme-Grip™ Rear LCA System, 1979-1993 Mustang 8.8 Non-IRS

Xtreme-Grip Rear Lower Control Arm (LCA) for FOX Body


Vehicles: Ford Mustang (3rd generation) with 8.8 rear end Non-IRS (1979-1993)

The CorteX Racing Xtreme-Grip Rear Lower Control Arm (LCA) System sets the standard for lightweight adjustable lower control arms.

We include heavy-duty spacers and high strength Chromoly DOM tubing that is TIG welded and then electrolysis nickel plated for corrosion resistance.

Proven Endurance Durability

Most importantly, these arms and brackets have been track tested for thousands of miles under racing conditions to ensure the utmost in reliability.

vehicle years: (79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93)

1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1989,  1990, 1991, 1992, 1993)

Xtreme-Grip™ Rear LCA System, 1994-2004 Mustang 8.8 Non-IRS

Xtreme-Grip Rear LCA System for SN95


Vehicles:  Ford Mustang, 4th Generation (1994- 2004) with 8.8 rear end (non-IRS)


The CorteX Racing Xtreme-Grip Rear Lower Control Arm (LCA) System sets the standard for lightweight adjustable lower control arms.

We include heavy duty spacers and high strength chromoly DOM tubing that is TIG welded and then electrolysis nickel plated for corrosion resistance.

Proven Endurance Durability

Most importantly, these arms and brackets have been track tested for thousands of miles under racing conditions to ensure the utmost in reliability.

Vehicles: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004

94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

Xtreme-Grip Rear LCA System, Track, 2005-2014 Mustang

Xtreme-Grip™ Rear LCA System, 2005-2014 S197 Mustang, Street

Xtreme-Grip Rear LCA System, Street Use


Vehicles: 2005-2014 S197 Mustang

  • Xtreme-Grip Rear Low Control Arm System
  • Street configuration (poly rod ends)

2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014

Rear Lower Control Arm (LCA)

The CorteX Racing Xtreme-Grip Rear Lower Control Arm System sets the standard for lightweight adjustable lower control arm.

Track Tested – Proven Reliability

We include heavy duty stainless steel spacers and high strength aluminum links with our LCA kits.  The drop down brackets are a 1-piece design constructed from cold rolled steel that is powder coated for corrosion resistance and durability.

Applications:  2005-2014 Ford Mustang, 8.8 rear end

  • Adjustable length tubular control arms
  • 1-piece Axle Brackets made from Cold Rolled steel
  • Stainless steel spacers
  • Stainless steel housing with polyurethane bushings on chassis side

Monoball kit, 2015-2021 S550 Mustang, GT350, Rear Only

Monoball kit, Rear Only

Vehicles: 2015-2021 S550 Mustang, Shelby GT350, GT350R

CorteX Racing new monoball control arm kit for all 2015-2021 S550 Mustangs including GT350 and GT350R.


This upgrade is what we have done to our World Challenge race cars and now it is available for you to install on your vehicle for performance driving, track, or competitive racing.

What does this do for you?

Spherical bearings allow the arms to pivot in a smooth, and accurate motion as intended. No more deflection under loading, no more changing in toe which results in an inconsistent and nervous feeling on track!

The CorteX Racing monorails utilize American made high quality stainless ball with a Teflon lined race so you will have years of trouble free life from the bearings, just like our camber plates and sway bar end links.

Kits include:

  • mono ball housings
  • bearings,
  • retaining clips,
  • spacers, and
  • Loctite sleeve retainer

Instructions are available for download online. Bearings are pre-assembled in the housings before shipment to the user.

Also notice our optional OEM bushing removal mandrels available as an option.  They are perfectly sized to allow removal of the OEM bushings without damaging the control arms when using a press.


DIY Easy Install

This part can be installed at home if you have access to a press for removal of the OEM rubber bushings. If you don’t have access to a press we are more than happy to install them for you if you remove your control arms and ship them to us.  Call us for details or simply add the Cortex installation option before checking out!

LCA Bushing Deflection – In Action

Check out this undercar video of the rear lower control arm bushing deflecting from simply driving the car around the parking lot.



The Core of Performance

No matter how you will drive, the suspension system is the backbone of your car’s capabilities.

Your suspension system design and materials can make or break a car’s success in Motorsports.

– Filip Trojanek, Founder, Professional Engineer

Compare Suspension Systems by Application


Competition Proven, Unmatched Value

Unlike most retailers, CorteX Racing designs with professional engineering methods, using top quality materials, manufactures in-house, and then we prove our performance under extreme testing conditions.

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Types of Suspension Components

A Watts Link System allows the roll stiffness of the suspension to be changed. Our Xtreme-Grip™ system enables precise balancing of the front-to-rear grip so that the desired handling can be achieved. Read More

Internally, a strut is similar to a shock absorber. A piston is attached to the end of the piston rod and works against hydraulic fluid to control spring and suspension movement. Front struts from CorteX are optimized with the correct spring rates and valving suitable for either Street or Track use. Read More

Ideally used along with front struts, The Xtreme-Grip rear coil-overs have been designed for maintain bump travel even with the vehicle lower. Spring rates and valving has been carefully optimized in Street or Track kits. Read More

No longer just for racing, with a properly engineered complete coil-over system from CorteX you will have spring rates and valving suitable for street or track applications. Read More

The Xtreme-Grip torque arm is a rear suspension component that delivers unsurpassed corner exit and straight-line rear grip without sacrificing cornering agility. The CorteX design adds anti-squat while still having correct rear axle roll steer.  Read More

The correct spindles are essential to a dialed front suspension. Much more than just what the control arms bolt to, the spindle design and strength dramatically effects the geometry and handling. Read More

Lowered cars greatly benefit from correcting the rear Lower Control Arm (LCA) geometry to regain the anti-squat geometry essential for traction. Read More

Compared to a front strut suspension, the CorteX SLA has superior camber gain, roll center stability and in most cases additional tire clearance. Read More

Demand Form & Function

We design, build and race what we sell. If you demand more grip, cornering speed and responsiveness, choose CorteX for a DIY mod or a complete build of your dream Hot Rod, American Muscle, Pro Touring or Track car. 

Professionally engineered, quality US materials, built in-house, proven durability

’67 Cougar “Max Effort”

1967 Cougar Max Effort Project Campbell HotRod CorteX Racing

By design, Max Effort tests the limits of a street-legal muscle car with a build focused on dominating a road course.

1967 Mercury Cougar “Max Effort”

Driver: Chris Campbell, CA.

Usage: Street Legal Road Racer

Hot Rod Magazine 67 Cougar Paint it Yourself Cover

Featured Build of Popular Hot Rodding Magazine

The Name Says it All

How far can we push a street legal muscle car in road racing, while keeping a pure vintage vibe?

We wanted Max Effort to have a Trans-Am type look that would appeal to all generations, but with performance on-par with modern track machines. Result? A maximum effort build.

Max Effort Cougar Build

Max Effort makes use of CorteX Racing’s vintage front and rear competition suspension system including the SLA, Watts Link and Coilover set-up along with a complete swap over to a K-member much like modern muscle cars use. This opened up greater options for engine placement.

Xtreme-Grip™ Vintage Radial-X™ Front Suspension System, FSS-10-1000X

Optimized For Competition

Max is packed full of our best tricks and many one-off bits that are integrated so well that they’re often missed on the first pass. For starters, we kept the shape of the stock Cougar flares, but to get the stance where we needed it and fit 18×11 & 18×12 Forgeline GA3R wheels with 315 & 335 tires, custom larger arches were crafted and the whole wheelwell was shifted upward and outward.

The hood and the decklid are both honeycomb composite wrapped in carbon fiber, the bumpers are VFN race glass, and the grille is a single stainless-steel piece, all of which adds up for dramatic weight savings.

We also moved the drivetrain back 9-inches and down three inches to get better weight distribution and allow the GT40 style hood vents to swoop down and butt up to the radiator. That also allowed us to duct the air box directly into the cowl NASCAR style. [more on this, see Hot Rod link below]


Type: 438ci Ford Windsor, build by Ford Performance Solutions
Block: Dart aluminum
Rotating Assembly: Forged RPM International crank and rods, forged Ross Racing pistons
Cylinder Heads: Ford Performance Solutions Avenger XTC 351-C CNC
Camshaft: Custom solid roller by COMP Cams
Valvetrain: Custom T&D shaft rocker system, COMP Cams pushrods and roller lifters
Induction: Edelbrock intake retrofitted with EFI
Exhaust: Custom tuned length headers by RCI Headers (rest under construction)
Ignition: MSD billet distributor, FAST XFI 2.0, FAST crank trigger & coil
Oiling: Aviaid 3-stage dry sump

Transmission: Rockland Standard Gear T56 Tranzilla
Bellhousing: Lakewood Quicktime
Clutch: Centerforce DYAD
Flywheel: Centerforce steel

Clutch hydraulics: RAM
Clutch pedals: Wilwood hanging
Driveshaft: Custom Driveline Specialties 3.5-inch steel
Rearend: Custom CorteX Racing/Speedway Engineering Grand National Floater
Axles: Speedway Engineering crowned & gun drilled
Gears: Motive Gear 4.11
Differential: Eaton Detroit TrueTrac

Front Suspension: CorteX Racing SLA and removable tubular K-member with CorteX Severe Duty control arms, CorteX antiroll bar, CorteX Radial X spindles, and Koni/Eibach coilovers, rack and pinion
Rear Suspension: CorteX Racing extended lower control arms, watts link, and adjustable torque arm with Koni/Eibach coilovers
Brakes: Baer Brakes 6R 6-piston monoblock calipers and 14-inch two-piece rotors front & rear
Custom stainless-steel plumbing, Wilwood master cylinders
Custom 10-point rollcage by Kertz Fabrication


Wheels: 18×11 & 18×12 Forgeline GA3R with titanium hardware
Tires: 315/30 & 335/30

Spek gauges in modified stock cluster and dash
Flaming River motorsport steering column: Flaming River steering wheel

Custom honeycomb composite/carbon fiber hood and decklid
Custom steel fender flares
Custom mini-tubs
Custom firewall
Custom airbox with venting into cowl
Custom front floorpans & trans tunnel
Custom VFN fiberglass bumpers
Custom stainless-steel grille
Paint & Body: Wild Wes Paintworks

Featuring Xtreme-Grip™ Vintage Suspension

Popular Hot Rodding – Featured Build Editions

PHR- 1967 Mercury Cougar – Street-Friendly Comp Cage

We show you how to combine safety and style for the ultimate streetable rollcage.

PHR- Project Max Effort 1967 Cougar Three-piece Splined Sway Bars – Control The Roll!

We show you how to upgrade to a splined sway bar in any car!

PHR- Max Effort 1967 Cougar Engine Placement – Position Of Power

We set the optimum location and angle for the driveline in our ’67 Cougar project car.

PHR- 1967 Mercury Cougar XR7

Project Max Effort Starts Reassembly At Horsepower Connection!

Keep up with Chris:

Stay in the Know

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Respective Media © 2020 Hot Rod | MOTOR TREND GROUP, LLC.

1964 Ford Fairlane

Not Your Grandfather’s Thunderbolt

“I think I may have overdone this.”

– Colin Sebern

Tribute to a Champion

This 1964 Fairlane was built to look like the Ford Thunderbolt, a limited production, factory lightweight drag racing vehicle. Approximately 100 vehicles were produced. The Thunderbolt dominated the drag strip and secured the 1964 NHRA Super Stock Championship. But make no mistake, Thunderbolts never went this fast.

1964 Ford Fairlane Project

Driver: Colin Sebern, San Francisco Ca.

Usage: Daily Driver / Test Vehicle / Drag Vehicle

Thunderbolt Clone 1964 Ford Fairlane Custom Build Sebern CorteX Racing Suspension
Ford Fairlane Thunderbolt Clone Build CorteX Racing Suspension Watts Link

Fairlane Build


  • Build: Colin Sebern
  • 1200+ rear-wheel horsepower (est.)
  • Rear axle: CorteX Racing cambered (-1.0º) full-floating 8.8″ housing with Strange Engineering S-Trac differential, Ford Racing 3.27 final gear and CorteX Racing 300M 35-spline axles
  • Transmission: GearStar Pro Level IV GM Performance 4L85E 4-Speed Automatic Overdrive Transmission. Custom Yank Performance 11″ billet 3400RPM stall lock-up converter. Rossler Ross-Lock™ Transmission Brake
  • Front Suspension: CorteX Xtreme-Grip™ Vintage Builder Kit
    • CorteX Racing SLA and tubular K-member
    • CorteX Severe Duty control arms
    • CorteX adjustable antiroll bar
    • CorteX/JRi adjustable coilovers
  • Rear Suspension: CorteX Xtreme-Grip™ Vintage System (Full)
    • CorteX Watt’s link
    • CorteX Torque arm
    • CorteX/JRi adjustable coilovers
  • Engine block: Dart Iron Eagle Ford 9.5″ 351 Windsor
  • Displacement: 427ci (7.0L) 4.125″ x 4.00″
  • Rotating assembly: Callies Magnum billet crankshaft, Ultra I-Beam Connecting Rods, Diamond 2618 Alloy Pistons, Moly Skirt Coating, Ceramic Dome Coating, H-13 Tool Steel Pins
  • Cylinder heads: Dart 20º Pro1 Aluminum CNC, 2.08″ SS Intake, 1.60″ Inconel Exhaust, 62cc Chambers, 225cc Intake Runners (Port-Matched)
  • Camshaft: Custom grind Cam Motion low-lash solid roller
  • Valvetrain: Jesel Sportsman aluminum adjustable shaft rocker system
  • Induction: Twin (Mirror-Image) Nelson Racing/Turbonetics GenII 72mm ball-bearing water-cooled turbochargers, Holley Hi-Ram lower intake manifold (Port-Matched), Shearer Fabrication Low-Profile 1800HP Hi-Ram Intercooler, Holley 105mm throttle body, (2) Turbosmart 50mm GenV Pro-Gate Wastegates, Turbosmart Race-Port BOV
  • Oiling: Moroso Performance fully fabricated rear wet-sump road race Fox body oil pan with crankshaft scrapper, partition-louvered windage tray, trailing kick-out and high G-load trap doors
  • Fueling: Holley 220lb/hr flow-matched injectors, 16-gallon fabricated tank with ATL road race 3-door baffled sump, (2) electric in-tank TI Automotive (Dodge Hellcat/Demon) 525LPH fuel pumps and Deutsch Autosport hermetic fuel-safe bulkhead connector
  • Engine Management: Holley Dominator EFI
  • Ignition: MSD Pro 600CDI 8-channel capacitive discharge ignition with individual coils
  • Cooling: Griffin Radiator, Edelbrock Victor water pump, (2) Spal Extreme-Duty Fans. Separate 5 gallon closed-loop, variable flow inter-cooling system with air-water heat exchanger.
  • Technology: 4-channel independent road race (high duty cycle) Anti-Lock disc braking system with active fault recovery. Real-time, driver adjustable traction control via active torque management. Real-time wheelie control with active laser ride height monitoring. Real-time, driver adjustable stability control via 2-Axis IMU and steering angle.
  • Brakes: Front: 13″ Girodisc 2-piece vented rotors with 2-piston Ford/PBR SN95 Mustang Cobra floating calipers, Rear: 12″ Girodisc 2-piece vented rotors with single-piston Ford S197 Mustang floating calipers
    Tires: Front: 215/60VR16 Goodyear Eagle Sport All-Season, Rear: 295/55/15 Mickey Thompson ET Street
  • Wheels: Front: 16″×7″ American Racing Classic Torq Thrust II, Rear: 15″×8.5″ American Racing Torq Thrust D
  • Amenities: Air Conditioning, Electronic Power Steering, Apple CarPlay

Fairlane Thunderbolt Clone in Action

Keep up with Colin

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More Custom Builds, Racing & Reviews

Vintage Mach 1 Mustang Mod

Best vintage mustang mod to upgrade to hotrod
Vintage Mach 1 Mustang Build by CorteX Racing

When you love your classic pony car, it takes a lot of confidence in the products before plunging into a complete suspension upgrade… you can trust the experts at CorteX racing where we build what we love.

1970 Spectre Mach 1 CorteX Suspension

The Xtreme-Grip™ Vintage Rear Suspension Kit on this Mach 1 Mustang was developed and installed by CorteX Racing including a Watts Link, Torque Arm Rear lower control arms (LCA) JRi double adjustable coilovers Subframe connectors.

Vintage Mustang Suspension Upgrades and Project Builds from CorteX Racing

Modernize an American Muscle Classic

For the best suspension kit for vintage mustangs, the Xtreme-Gripsystem delivers unparalleled performance improvements with easy installation and minimal alteration.

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