Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Suspension

Shop AFCO At Speedway Motors

AFCO racing and performance parts began over 30 years ago with a simple need for better suspension. Today, they’re a manufacturer known for leading the industry with new, innovative and winning engineered parts for racing and performance suspension, exhaust, brakes and cooling.  Three decades of working closely with racers and tuners, and working countless hours on testing at tracks with customers has yielded a team focused on delivering superior performance, quality, and value in every product they produce.  If you want the absolute best, you want AFCO performance parts.

Featured Products
  • Aluminum Cone for AFCO Shock Bumpers
    Aluminum Cone for AFCO Shock Bumpers
    (Part #10620173)
    x
                

    Replacement aluminum cone seat for AFCO shock bumpers. Works with all Blue, Yellow, and Black convoluted bumpers.

    Cone only - bumper not included.

  • AFCO 20032-2LF Low Friction Upper Ball Joint, Extended Length
    AFCO 20032-2LF Low Friction Upper Ball Joint, Extended Length
    (Part #106200322LF)
    x
                

    AFCO Low Friction Ball Joints are designed with 2 ft. lbs. of resistance, the force required to move the stud of the ball joint.  Compare this with standard replacement joints, with as high as 50 ft. lbs. of resistance.  A difference you can feel!  It is critical to handling that suspension components be as free as possible to move.  Low friction ball joints allow the suspension to give rather than allowing the tire to bounce over rough surfaces.  Low tire pressures magnify the need to minimize friction in the suspension.

    • Precision machined to tight tolerances, providing consistent resistance throughout the travel of the ball joint to deliver consistent performance
    • Improves weight transfer
    • Frees up suspension for more consistent, repeatable chassis tuning
    • Removes suspension rigidity and allows shock and spring to have more precise wheel control
    • Adjustments are controlled more effectively by the shock and spring instead of the tire which improves traction
    • Provides more accurate set-ups during vehicle scaling
    • Meets or exceeds standard ball joint strength
    • Stock appearing
    • Lower input steering efforts and faster steering wheel return

     

  • AFCO 5 Inch x 13 Inch Rear Springs
    From: $54.99
    AFCO 5 Inch x 13 Inch Rear Springs
    (Part #10629)
    x
                

    There's a lot riding on your springs-literally. Springs are your car's connection to the ground, and their performance is directly related to all other suspension components. Inconsistent, weak springs can cause a multitude of handling problems , and, in some cases, dangerous situations. When it comes to choosing coil springs, there are many alternatives, but if you want the best you can get, the choice is clear: CHOOSE AFCOILS. 

    All AFCOILS carry a lifetime warranty to remain within 2% of the original nominal free height. Choose your rate. 

    • Every AFCO Coil Spring is machine-ground on both ends to tolerances within 1 degree, and then pressed to solid height and "pre-set." This process virtually eliminates any potential for additional set.
    • AFCO has made a science of optimizing the variables of material thickness and coil spacing to achieve the best possible design for each rate and height of spring in their product line.
    • AFCOILS incorporate the use of super-high tensile strength chrome silicon wire for long life and and a consistent rate. All springs are cold wound on the latest automated coiling equipment and heat treated twice during manufacturing to be able to withstand even the most abusive conditions.
    • To further enhance durability, AFCOILS are shot-peened and coated with a durable yellow finish.

     

  • AFCO 20238 U-Bolt, 3 x 8 Inch
    AFCO 20238 U-Bolt, 3 x 8 Inch
    (Part #10620238)
    x
                Our U-bolts are heat treated and plated to ensure long life and durability.  All bolts are 1/2" diameter.
            
  • AFCO 40027 2010-12 Camaro High Performance Suspension Package
    AFCO 40027 2010-12 Camaro High Performance Suspension Package
    (Part #10640027)
    x
                
    • Two re-valveable coil-over struts
    • Two re-valveable coil-over shocks
    • Two front springs - 275 lb./in.
    • Two rear springs - 270 lb./in.
    • Kit as shipped puts your Camaro 1" lower than stock
    • Front and rear adjustable sway bars with bushings
    • Caster/camber plates for optimum front end geometry
    • Noise isolation for front and rear coil-overs
    • Four jounce bumpers
    • AFCO shock valving tuned for a high performance driving experience
    • AFCO high performance progressive coil springs on all four corners
    • Factory upper and lower shock mounts used for the rear suspension
    • Tightens suspension for interstate highway travel, while maintaining a quiet and comfortable ride
    • Quick steering response and less body roll/float due to improved sway bar technology
    • Full color installation manual
    • Front end alignment will be necessary after installation
  • Afco 30030 1979-04 Mustang Double Adjustable Big Gun Front Drag Strut
    Afco 30030 1979-04 Mustang Double Adjustable Big Gun Front Drag Strut
    (Part #10630030)
    x
                

    This double adjustable strut from Afco is engineered for use with 1974-2004 Mustangs. Its superior valving technology eliminates huge wheelies and the click by click adjustment allows you to know exactly where your valving is set.  These drag racing struts offer more damping control and adjustment range than any other strut currently available.

    • 35mm piston promotes excellent damping and control
    • Bolt on clevis spacer improves installation
    • CAD designed and FEA optimized
    • Rebuildable and revalvable
  • AFCO 10202 Wide 5 Steel Self-Lock Nut
    $14.99
    $15.99
    AFCO 10202 Wide 5 Steel Self-Lock Nut
    (Part #10610202)
    x
                
    • Fits 3/4 ton / Wide 5 spindles
    • Small hole for positive lock
    • Stainless steel locking ring
    • Replaces double locknuts and washer

    Instructions (PDF)

  • AFCO 1022 10 Series Street/Strip/Track Front Shock, Comp/Reb: 7/4
    AFCO 1022 10 Series Street/Strip/Track Front Shock, Comp/Reb: 7/4
    (Part #1061022)
    x
                

    AFCO has been in the shock business for over 20 years and has incorporated their technological knowledge into this 10-Series street/strip/track shock.  This 80/20 front shock allows the front to lift and hold under acceleration, which transfers weight to the rear tires and improves traction.

    Whatever your street stock choice, AFCO has the stock mount shock for you.  These 10-Series gas pressure shocks are built with the valving you need for racing, but are assembled in a "stock" configuration body to meet most track rules.  The split-valve shocks offer additional tuning capabilities over the standard valving. 

    Available Split Valves - Part # 1061022 is a "split valve - easy up" shock used on the front to promote weight transfer under acceleration.  This will enhance forward traction.

    AFCO K-Series shocks are built to the highest quality standards and will deliver the control you need to keep your tires planted and your horsepower working for you.

    • Compressed Length: 9.375"
    • Extended Length: 13.375"

    Fits:

    • 1955-86 GM Full Midsize
    • 1955-57 Chevy
    • 1958-70 Impala
    • 1970-81 Camaro/Firebird
    • 1964-89 Chevelle/Monte Carlo
    • 1965-86 Ford Fullsize, Montego and Cougar

     

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  • AFCO 1682-48S Small, Rebound Adjustable Smooth, 8 Inch, Comp 2/Reb 4-8
    AFCO 1682-48S Small, Rebound Adjustable Smooth, 8 Inch, Comp 2/Reb 4-8
    (Part #106168248S)
    x
                
    • Twin-tube design for traction in the slickest of track conditions
    • Rebound changes will not affect compression
    • Shim stack technology in a lightweight small-body design
    • Smooth body for non-coilover applications
    • Rebuildable and repairable
    • 1.68" O.D.
    • Compressed length = 13.59"
    • Extended length = 21.69"
  • AFCO 16 Series Small Threaded Twin Tube Shock, Alum 7 In. Comp/Reb-4/3
    AFCO 16 Series Small Threaded Twin Tube Shock, Alum 7 In. Comp/Reb-4/3
    (Part #10616743)
    x
                

    Precise, consistent and dependable control is what makes the AFCO R-Series Shocks winners.  These shocks have maintained their ability to provide the highest levels of performance from a fixed valve twin-tube shock by evolutionary improvements in production methods and component design.  Today, AFCO R-Series Rebuildable shocks are better than ever and are set to provide you with the "just right" set-up you need to win.

    All AFCO R-Series Shocks are 100% dyno tested, rebuildable, and revalvable.  AFCO Shocks are built to the highest standards in the industry.  In-house manufacturing means that they have total control over production tolerances and quality.  Their production system ensures that when you buy an AFCO shock, you have bought the best! 

    • Compressed Length: 12.59"
    • Extended Length: 19.69"
    • Threaded Body

    Dirt Midget Non-Wing Gas and Twin Tube Shock Chart (Link)  

  • AFCO A550070138X Small Body Replacement Shaft Assembly, 8 Inch
    AFCO A550070138X Small Body Replacement Shaft Assembly, 8 Inch
    (Part #A550070138X)
    x
                

    Replacement shaft assemblies for AFCO Small Body shocks.

    NOTE: New shim stack design.

  • AFCO 3840C 4 Inch Double Adjustable Coilover Shock w/o Spring
    AFCO 3840C 4 Inch Double Adjustable Coilover Shock w/o Spring
    (Part #1063840C)
    x
                Please view the product's page for more information
            
  • AFCO 23600CR 10 Inch Extreme Chrome Coil-Over Spring, 600 Rate
    AFCO 23600CR 10 Inch Extreme Chrome Coil-Over Spring, 600 Rate
    (Part #10623600CR)
    x
                

    Whether you are building a purpose-built drag strip machine or a beautiful show car, Extreme Chrome coilover springs will provide the strength, durability and show stopping good looks you desire. 

    • Industry exclusive 360° polished wire
    • High quality REAL chrome finish
    • Looks great from any angle - not just on the outside edge
    • 2-5/8" inside diameter

    All Afcoils carry a lifetime warranty to remain within 2% of the original nominal free height. 

    Afcoil Spring Rate Guide (Link)

    Coil-Over Mounting Guide (Link)

  • AFCO 6845F Reactor Front Drag Shocks - Chevrolet/GM/Dodge
    AFCO 6845F Reactor Front Drag Shocks - Chevrolet/GM/Dodge
    (Part #1066845F)
    x
                

    AFCO Single Adjustable Monotube FRONT shocks are an economical alternative to the fully double adjustable design. The single adjustable gives you the ability to adjust rebound dampening control without affecting the compression dampening characteristics of the shock. Plus, with AFCO's exclusive "BNC" valving, these shocks eliminate bounce caused by the impact after a wheel stand.

    • Quicker R.T.'s
    • Gas Mono-tube design for superior tuning and performance
    • Rebound adjustable only - will not bleed over to compression
    • BNC Valving eliminates front end bounce
    • Can be upgraded to a coil-over shock
    • 100% co-Tested and Serial Numbered

    Fits most '55-'96 GM chassis

    Fits 1979-1992 Dodge Ram half-ton 2WD pickup trucks.

    See Applications tab for fittment.

  • AFCO 5135050 51 Series Quarter Midget Shock & Cone-Progressive 5 Valve
    AFCO 5135050 51 Series Quarter Midget Shock & Cone-Progressive 5 Valve
    (Part #1065135050)
    x
                

    Afco 51 Series Quarter Midget shocks feature a low drag seal system while utilizing a hardened chrome shaft. Engineered with deflective disk and shim stack technology as well as having the lowest rod pressure in the industry makes this shock stand above the rest. The shocks are owner rebuildable, serviceable and revalveable.

    • Chrome shaft
    • Low drag seal system
    • Lowest rod pressure in the industry
    • Deflective disk, shim stack technology
    • Owner rebuildable
    • Short spring cone
    • Stroke - 2.5"
    • Compressed Length - 7.70"
    • Extended Length - 10.20"

    Tuning Guide (PDF)

  • AFCO 36221-1 Swedged Aluminum Tube, 1 Inch O.D.(5/8) Inch, 21-1/2 Inch
    AFCO 36221-1 Swedged Aluminum Tube, 1 Inch O.D.(5/8) Inch, 21-1/2 Inch
    (Part #106362211)
    x
                

    Insist on 6061-T6 drawn tubing for strength, durability, and precise fit.  Extruded tubing looks similar, but it is not as strong or durable.  Extruded parts are prone to failure, while drawn parts keep performing.  Drawn material offers the same strength as hex without the additional weight.

    These tubes are threaded LH on one side and RH on the other.

  • AFCO 1000 Gas Shock End 1/2 I.D. x 0.625 Inch Wide Bearing
    AFCO 1000 Gas Shock End 1/2 I.D. x 0.625 Inch Wide Bearing
    (Part #1061000)
    x
                

    AFCO Gas Shock End 1/2 I.D. x 0.625 Inch Wide Bearing

    Replacement Teflon lined spherical bearings for all AFCO shocks except K-Series.

    •  1/2 Inch I.D. x 0.625 Inch Wide
  • AFCO 100130 Precision Pinto Spindle, Right Hand Side
    AFCO 100130 Precision Pinto Spindle, Right Hand Side
    (Part #106100130)
    x
                AFCO's precision pinto spindle program has been  engineered to  provide precise, dimension perfect spindles to chassis  builders and  racers alike. When replacing a crashed precision spindle  from AFCO, you  can be assured that your front end geometry will not  change.
    • CNC Blue Printed to stock dimensions to be the same every time
    • Ball joint tapers CNC machined to align with each other
    • Ball joint axis CNC machined to align with spindle axis
    • Promotes precise front end geometry
    • Right hand side ONLY
    • Not IMCA approved
  • AFCO Silver 58 Series Gas Bulb Shocks, IMCA Approved
    AFCO Silver 58 Series Gas Bulb Shocks, IMCA Approved
    (Part #10658)
    x
                

    AFCO Silver 58 Series Bulb Shocks feature a bulb design for reduced gas pressure gain and increased feel for worry-free racing.

    • Ultra-strong DURox chrome shaft
    • Owner serviceable
    • Easily tuned for any track condition
    • Without base valve, IMCA approved

    Tuning Guide (PDF)

  • Afco Reb/Comp Knob Shock Rebuild Wrench
    Afco Reb/Comp Knob Shock Rebuild Wrench
    (Part #A700500011)
    x
                

    Afco shock rebuild wrenches.

    • Reb/Comp Knob Wrench
  • AFCO Non-Adjustable Alum. Coil-Over Shock Kit, 7 Inch Stroke, 13 Inch Comp.
    AFCO Non-Adjustable Alum. Coil-Over Shock Kit, 7 Inch Stroke, 13 Inch Comp.
    (Part #1061370)
    x
                

    AFCO has been building racing shocks for over 20 years and are now applying their technology to street rod shocks. These aluminum coilover shock kits have superior FIXED valving that will give you a better ride and improve handling.

    • Each shock is hand built and dyno tested
    • Supplied with two 5/8" I.D. polyurethane bushings
    • Includes AFCO Mirror Finish coilover springs in the rate of your choice
    • Kit includes (2) shocks, (2) springs, and (2) coil-over hardware kits
  • AFCO 20135D Drag Shock Hardware, Coil-Over Kit, Spring to Shock Mount
    AFCO 20135D Drag Shock Hardware, Coil-Over Kit, Spring to Shock Mount
    (Part #10620135D)
    x
                Replacement parts and hardware for AFCO Drag Series coilover shocks.
            
  • AFCO 3240C Pro Touring Elite Series Shock, 4 Inch Stroke
    AFCO 3240C Pro Touring Elite Series Shock, 4 Inch Stroke
    (Part #1063240C)
    x
                

    AFCO's Pro Touring Elite Series double adjustable shocks offer a unique blend of hydraulic and gas-assisted dampening that provides unparalleled on-and-off track performance. These shocks will revolutionize the handling of your dual-purpose street/autocross vehicle. 

    • Remote mounted canister allows for convenient dampening adjustment
    • Double Adjustability - broad range of adjustment
    • 1/2" I.D. x 1" wide Teflon lined spherical bearing end mounts

    Suggested Spring Height

    • 4" Stroke:  7-8"
    • 5" Stroke:  10-12"
    • 7" Stroke:  12-14"

    Coil-over compatible with purchase of additional parts.

    Front Coil-Over Mounting Guide (GIF)

    Rear Coil-Over Mounting Guide (GIF)

     

  • AFCO 20020K OEM Tubular Arm Bushing Kit
    AFCO 20020K OEM Tubular Arm Bushing Kit
    (Part #10620020K)
    x
                OEM Tubular Arm Bushing Kit

    UMP Approved

  • Afco 51 Series 4 Inch Quarter Midget Shock w/ Schrader Valve, 2.5 Inch
    New
    Afco 51 Series 4 Inch Quarter Midget Shock w/ Schrader Valve, 2.5 Inch
    (Part #1060514)
    x
                Please view the product's page for more information
            
  • Afco 13T Twin Tube Shock Replacement Parts, 5 Hole Plate
    Afco 13T Twin Tube Shock Replacement Parts, 5 Hole Plate
    (Part #A550090202X)
    x
                

    Replacement parts for AFCO 13T Twin Tube shocks. 

    If you are having trouble locating parts please use the exploded view link below.

    Exploded View/Components list (PDF)

  • AFCO 23500CR 10 Inch Extreme Chrome Coil-Over Spring, 500 Rate
    AFCO 23500CR 10 Inch Extreme Chrome Coil-Over Spring, 500 Rate
    (Part #10623500CR)
    x
                

    Whether you are building a purpose-built drag strip machine or a beautiful show car, Extreme Chrome coilover springs will provide the strength, durability and show stopping good looks you desire. 

    • Industry exclusive 360° polished wire
    • High quality REAL chrome finish
    • Looks great from any angle - not just on the outside edge
    • 2-5/8" inside diameter

    All Afcoils carry a lifetime warranty to remain within 2% of the original nominal free height. 

    Afcoil Spring Rate Guide (Link)

    Coil-Over Mounting Guide (Link)

  • AFCO 36213-1 Swedged Aluminum Tube, 1 Inch O.D.(5/8) Inch, 13-1/2 Inch
    AFCO 36213-1 Swedged Aluminum Tube, 1 Inch O.D.(5/8) Inch, 13-1/2 Inch
    (Part #106362131)
    x
                

    Insist on 6061-T6 drawn tubing for strength, durability, and precise fit.  Extruded tubing looks similar, but it is not as strong or durable.  Extruded parts are prone to failure, while drawn parts keep performing.  Drawn material offers the same strength as hex without the additional weight.

    These tubes are threaded LH on one side and RH on the other.

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