Since 1952
America's Oldest Speed Shop ®
Speedway Motors Bill Smith
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Hook up that horsepower with driveline parts from Speedway Motors. Whether you're racing at your local dirt track, at the drag strip or just have a monster under the hood of your hot rod, we have the parts and technical know-how to help you put the power to the ground.

Featured Products
Currie 9 Inch Ford Rear Axle Kit
Currie 9 Inch Ford Rear Axle Kit
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Currie's Universal Hot Rod Ford 9" kit includes a brand new 56" housing, lifetime warranty 31 spline axles, new axle bearings and seals, and new style big Ford ends. 

  • Housing is 56" from axle face to axle face
  • Axles drilled for 5 x 4-1/2" Ford/Mopar and 5 x 4-3/4" Chevy/GM bolt patterns
  • Includes wheel studs, 1/2"-20 Ford and 7/16"-20 Chevy
  • 1/4" heavy duty late model large bearing style retainer plates

Note: Axle bearing does not come pressed onto the axle shaft, and wheel studs are not installed. Third member not included.

Currie Rear Axle Installation Instructions

How to Measure Your Housing Tech Tip (Link)

Need a certain length not found on our site?  Check out Currie's 9+ Rearend Calculator to have specially sized axles or rearend housings made for your specific application.  Custom orders will be built and processed directly through Currie Enterprizes and shipped to your door. For ease of ordering, please refer to Currie's Dimension Diagram

Installation Notes:

When installing new axles in rearends with posi traction differentials, be sure to install the driver's side axle first to keep the splines properly aligned.  Failure to do so may move the two splined gears out of alignment, and it may be difficult to install the driver's side axle properly if the passenger side axle is already installed.

If installation of passenger side axle is done first it may require two people when installing the driver's side axle, with both parties rotating reach axle until splines are in line and the driver's side axle fully sides into the housing.

To ensure you get the most out of your new 9 Inch components, Currie recommends that you perform a proper break-in process:

  • Use a name brand mineral-based gear oil, preferably 85w140 (Extremely high quality synthetic oils may be used once break-in process has been successfully performed)
  • Place vehicle on jack stands and let the rearend spin while the vehicle idles - run transmission in both forward and reverse periodically throughout the process
  • Continue to run the rearend until the pinion gets hot (place hand on bottom of the differential housing to verify this)
  • Proper break-in allows:
    • The ability to install new axles and hit the track the same day without worry
    • Extended life for rearend components
    • Keeps the quality and life of your gear oil

Note: If you find that your rearend is running somewhat "tight" be sure to add Currie's 9+ Friction Modifier to "loosen up".  If a more aggressive performance is desired, Friction Modifier is not needed.

 

 

Winters Grand National Rear Ends
Winters Grand National Rear Ends
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            Winters full floating Ford 9 inch Grand National rearend features lite weight steel hubs with brake rotor mounts. This Grand National rear end assembly comes complete with a new housing, two hubs, two brake rotors, two solid 31 spline axles, two drive flanges, ten lug nuts, rotor and drive flange bolts along with all the needed bearings and seals. 

Now available in either a 5 x 5" or 5 x 4-3/4" bolt pattern and three different widths:

  • 58" centered
  • 60" centered
  • 62" with a 1/2" offset.

 

Grand National Rear End
$649.99
Product Rating: 4.00 Stars
Grand National Rear End
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            To help keep the cost of this full floating Ford 9 inch rear end down, This Grand National rear end assembly uses reclaimed original housings with new 3" tubes and ends. They have been cleaned and jig-welded to ensure straightness. Everything else is brand new and includes 31 spline axles, hubs, drive plates, 5/8" studs, bearings, seals, rotors and lug nuts.

Choose 58" or 60" width, centered pinion. Choose 5 on 5" or 5 on 4-3/4" bolt circles. 
Ford 9 Inch Posi Traction Third Member Assembly
Ford 9 Inch Posi Traction Third Member Assembly
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Speedway Motors now offers you a 9" Ford street 3rd member for your street rod. We reclaim genuine Ford 9" housings, clean, inspect and install all new components. All bearings, seals, 1310 series yoke and ring & pinion are new!

These Ford 9" 3rd member assemblies feature new Pro Gears ring & pinion, choice of 3.50, 3.70, 3.89, 4.11 or 4.56, Currie 9-Plus limited slip differential, 28 or 31 spline. Shipped in handy plastic carrying case. Assembled by professionals.

 

Currie Differential Tech Bulletin (PDF)

 

910-48345 Instructions (PDF)

Plain 1928-36 Ford 4 Inch Dropped I-Beam Axle, 48 Inches
Plain 1928-36 Ford 4 Inch Dropped I-Beam Axle, 48 Inches
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These precision made 4" dropped I-Beam axles accept 1928-36 Ford spindles and have 2-1/4" axle bosses. Dropped I-beam axles feature a one-piece design cast from high-strength 65-45-12 annealed ductile iron.

Caster Angle Illustration (GIF)

Leaf Spring Measuring Guide (Link)

I-Beam Axle Application Chart (GIF)

Front Axle/Suspension Tech Tips (GIF) 

1949-1954 Early Chevy Car Straight Axle
From: $269.99
1949-1954 Early Chevy Car Straight Axle
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Our plain steel tube axles are universal-fit, and professionally engineered & built. Features welded ends which require 1949-54 Chevy passenger car style spindles. Choose from 44"-50" widths (kingpin center-to-center), or order a custom length to fit your needs. 

  • Axle Tube:  0.250" wall
  • Axle Diameter: 2.00" O.D.
 

Gasser Build Info (PDF)

Speedway Replacement Parts for Grand National Style Rearends
Speedway Replacement Parts for Grand National Style Rearends
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            Replacement parts for a full floating Ford 9 inch Grand National rear end.
        
Bare 56 Inch Centered 9 Inch Ford Housing w/ Axles
Bare 56 Inch Centered 9 Inch Ford Housing w/ Axles
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Our economical 9" Ford rear axle housing features a reclaimed center section, new 3" axle tubes, and new-style Ford ends. Total track width is 56" from hub-to-hub.   The pumpkin is centered in the housing, which puts the pinion offset 2-3/8" from center

Includes a set of Currie 31-spline heat-treated, forged alloy axle shafts. Wheel bolt patterns are dual drilled for 5 on 4 1/2" Ford and 5 on 4 3/4" Chevy, and an access hole is drilled. Axles come with a full installation package which includes one set of five 1/2"-20 Ford style wheel studs, one set of five 7/16"-20 Chevy style wheel studs, one set-20 tapered roller bearing with race, seal, & collar, and one heavy duty late model large bearing style retainer plate. Axle bearing does not come pressed onto the axle shaft, and wheel studs are not installed.

Third member sold separately.

"Driveline and Axles" Page 1 of 25

  • Axle Housing Inner Seal, 9 Inch Ford Grand National/Quick Change Rearends
    Axle Housing Inner Seal, 9 Inch Ford Grand National/Quick Change Rearends
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    High cornering forces can force the gear lube out of the center section and down the axle tube leaving the ring and pinion high and dry! This billet aluminum seal has three O-rings that seal it to the axle tube and two bonded, heavy duty, neoprene inner seals designed to compensate for any amount of axle shaft runout. Keeps gear oil in the center section. These seals will take up to an 1.5” diameter axle.

    • Anodized billet aluminum
    • A must for cambered rear ends
    • For 9" Ford Grand National and Quick Change type housings
    • For up to 1.5” diameter axle
    • Keeps gear oil in the center section
    • Outside Diameter: 2.56"
    • Overall Length: 1.50"
    • This seal will fit our steel wide 5 axle
    • Choose housing tube I.D. size needed:
      • 2.500" - Gold
      • 2.562" - Blue
      • 2.625" - Red
      • 2.750" - Silver

    919-0951 Instructions (PDF)

  • Winters Sprint/Midget Rearend Nut for Quick Change Cover
    Winters Sprint/Midget Rearend Nut for Quick Change Cover
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                Use these aluminum rear cover nuts on your Winters rear ends. They are sold individually and feature an anodized red finish.
    • Aluminum rear cover nuts
    • Red anodize
    • Fit Winters rearends
    • Sold individually
  • Pro-Eliminator Rear End Replacement Parts, Integral Coupler Seal
    Pro-Eliminator Rear End Replacement Parts, Integral Coupler Seal
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    These Pro-Eliminator rear end replacement parts are in stock and ready to order.

    • Integral Coupler Seal

    Pro Eliminator Rear End Part Guide (Link)

  • Bearing-Seal Kit for Two Mustang II Brake Rotors
    Bearing-Seal Kit for Two Mustang II Brake Rotors
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    This bearing and seal kit includes two inner wheel bearings, two outer wheel bearings and two inner grease seals. This kit is enough for two brake rotors and is intended to be used with a new rotor installation as this kit does not include the bearing races or cups.

    If your project willl be making use of used rotors, you will require new bearing races or cups.  Therefore you will need to purchase the bearing and seal kit # 910-31052 suggested below in place of kit # 910-31000.

    Works with Mustang II/Pinto and Granada rotors using Mustang II/Pinto spindles only. It will not work for installing Mustang II/Pinto brake rotors on 1949-1954 Chevy spindles. Not for use with early Chevy spindle brake conversion kits.

    -Large Bearing-
    Thickness: .656"
    Upper OD: 1.900"
    Lower OD: 2.150"
    Bearing ID: 1.375"

    -Small Bearing-
    Thickness: .651"
    Upper OD: 1.380"
    Lower OD: 1.570"
    Bearing ID: 0.864"

    Never install new hubs with old bearings.

  • 9 Inch Ford Viton Pinion Seal
    9 Inch Ford Viton Pinion Seal
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    These Viton 9" Ford rear axle pinion seals are good to over 400° F. Stock rubber seal starts to deteriorate at about 250° F.

  • Grand National Rear Hub Bolts, Pair
    Grand National Rear Hub Bolts, Pair
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    Pair of Grand National rear end drive flange screws.

    • flathead Allen screws
    • 5/16"-18 x 3/4"
    • 1/2" thread length
    • black oxide coated steel
  • Pro-Eliminator Rear End Parts, Integral Coupler Internal Snap Ring
    Pro-Eliminator Rear End Parts, Integral Coupler Internal Snap Ring
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    These Pro-Eliminator rearend replacement parts are in stock and ready to order.

    • Integral Coupler Internal Snap Ring

    Pro Eliminator Rear End Part Guide (Link)

  • Winters Performance 7605 Pro-Eliminator Drive Shaft Snap Ring
    Winters Performance 7605 Pro-Eliminator Drive Shaft Snap Ring
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    These Pro-Eliminator rearend replacement parts are in stock and ready to order.

    • Driveshaft Snap Ring

    Quick Change Gear Sets, part number 91711-..., which is #41 on the diagram link below, are located elsewhere on this website.

    Note: This part is for sale because we either do not carry this product anymore or never have carried this brand/style before. Damages will be noted if applicable.

     Pro Eliminator Rear End Diagram (GIF)

  • 9 Inch Ford Ring & Pinion, 3.50 Gear Ratio
    9 Inch Ford Ring & Pinion, 3.50 Gear Ratio
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                This product offers exceptional strength and service life at a great price! We offer a huge selection of ratios for your 9" Ford axle. 

    Other ratios from 4.78 thru 7.33 available in our Lightened Gear series. (Part numbers 91919-478, 91919-525, 91919-614, 91919-666, 91919-683, 91919-700, 91919-716, 91919-733).

    Note:  Circle track racing applications require a minimum of 4 qts. of rear end lube.  Using less than this amount will lead to immediate pinion bearing failure.

    Instructions (PDF)

  • New Ford 9 Inch Aluminum Carrier Housing w/3.062 Inch Caps
    New Ford 9 Inch Aluminum Carrier Housing w/3.062 Inch Caps
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    This brand new carrier housing is built to take street/strip abuse without the fear of breaking. Our aluminum housing has forged caps and extra beef where it's needed. Most stock differentials use the 3.062" o.d. bearings # TLM603049 w/ 1.781" i/d.

    The aluminum case will save you 20 lbs. over the cast iron version. You should also add a new heavy duty aluminum pinion support while you're at it. 

    Carrier caps torque to 95 ft lbs.

  • Winters Performance 7496 Pro-Eliminator Back-Up Rear Cover O-Ring
    Winters Performance 7496 Pro-Eliminator Back-Up Rear Cover O-Ring
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    Pro-Eliminator and Winters Rearend Replacement Parts

    • Winters Back-Up Rear Cover O-Ring

    Speedway Motors has everyting you need to repair or upgrade your Winters quick change rearend. From center sections and gear sets to bearings, washers and O-Rings, we can help you get your rear back on the track!

    Winters Replacement Parts Figure (PDF)

    Pro Eliminator Rear End Diagram (GIF) 

  • Stallard Chassis BC250-550 Splined Axle Spacer, 3/4 Inch
    Stallard Chassis BC250-550 Splined Axle Spacer, 3/4 Inch
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                This 27-spline aluminum axle spacer has a 3/4 inch width.
            
  • Speedway Plastic Gear Box
    $5.99
    Product Rating: 4.00 Stars
    Speedway Plastic Gear Box
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                Use to protect and identify quick change gear sets.
            
  • Speedway 9 Inch Ford Chromoly Cross Pin
    Speedway 9 Inch Ford Chromoly Cross Pin
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                Our 3/4" cross pin for the 8" & 9" Ford axle is machined from chromoly steel and will stand up to lots of racing abuse.
            
  • Pinion Nut for 9 Inch Ford
    $4.99
    Product Rating: 5.00 Stars
    Pinion Nut for 9 Inch Ford
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                Thread pitch on this pinion nut is 3/4"-20. Fits 8" and 9" Ford rear axles.
            
  • Speedway Steel Drive Shaft
    $89.99
    Product Rating: 4.21 Stars
    Speedway Steel Drive Shaft
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    Lightweight steel driveshaft lengths measured from center of U-joint to center of U-joint. Driveshafts are not dynamically balanced. We recommend dynamically balancing the driveshaft prior to installation. Several lengths are available.

    • Super strong and much lighter
    • 2" O.D. tubing with .083" wall
    • Forged yokes
    • Painted white for high visibility on the track
    • Fits most IMCA modifieds

    U-joint # 91048315 works for the front U-joint position on these driveshafts and with the front yokes we sell. Any of the three U-joints listed will work on the rear U-joint location based on rear axle requirement.

  • Seals-It TBS2A-07 Complete Torque Ball Seal Kit
    Seals-It TBS2A-07 Complete Torque Ball Seal Kit
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                This seal kit fits in the motor plate hole and helps keep dirt out of the U-joint and torque tube.  
            
  • Drive Shaft Safety Loop
    $29.99
    Product Rating: 4.50 Stars
    Drive Shaft Safety Loop
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                This driveshaft safety loop holds the drive shaft in place in case of universal joint failure. Made from 2" x 1⁄4" hot rolled steel with grade 5 bolts. Bolt-on installation.
            
  • 1935-48 Ford 6-Spline V8 Open Drive Conversion Kit
    1935-48 Ford 6-Spline V8 Open Drive Conversion Kit
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                If you're building a nostalgia rod and want to run a modern tranny with your torque tube banjo rear end - here's your answer! This open drive conversion allows you to keep your 1935-48 Ford rearend intact and run a normal driveshaft. This is a bolt-on kit that fits the common 6-spline pinion and requires no machine work. 

    919-1105 Instructions (PDF)

  • Grand National 9 Inch Ford Rear End Hub Replacement Bearing
    Grand National 9 Inch Ford Rear End Hub Replacement Bearing
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                Replacement bearing cup (912-TL610510) and cone (912-TL610549) for GN Hub.
            
  • GM Front Slip Yoke, 5 1/2 Inch
    GM Front Slip Yoke, 5 1/2 Inch
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    Stock length (5-1/2") slip yoke for GM applications with 1-3/16" x 27-spline output shaft. Works with 1310 series U-joints.

    • This yoke measures 5-1/2" from tip to centerline of u-joint
    • This yoke is grooved for an "external" u-joint cap retaining clip
    • The machined length on the yoke is 3-3/4"

    The expressed measurement or length of the slip yoke is taken from the center of the u-joint to tip, not overall. 

    Fits over the output shaft of the following transmissions: 

    • Common GM/Saginaw 3 & 4 speed transmissions with a 1-3/16" x 27 spline output shaft
    • Powerglide, T-350, 700R-4, 200R-4, and 4L60 automatic transmissions
    • Muncie M20/M21 and Borg Warner T-5, T-10 & T-56 27-spline manual transmissions
  • DMI RRC-1700 XR-1 Bulldog Rearend Shifter Housing
    DMI RRC-1700 XR-1 Bulldog Rearend Shifter Housing
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    Manufactured with the highest quality castings, bearings, and gears these rearend parts have proven reliability.

    Shifter Housing

  • Bare 60 Inch Centered 9 Inch Ford Housing w/ Axles
    Bare 60 Inch Centered 9 Inch Ford Housing w/ Axles
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    Our economical 9" Ford rear axle housing features a reclaimed center section, new 3" axle tubes, and new-style Ford ends. Total track width is 60" from hub-to-hub.   The pumpkin is centered in the housing.

    Includes a set of Currie 31-spline heat-treated, forged alloy axle shafts. Axles come with a full installation package which includes one set of five 1/2"-20 Ford style wheel studs, one set of five 7/16"-20 Chevy style wheel studs, one set-20 tapered roller bearing with race, seal, & collar, and one heavy duty late model large bearing style retainer plate. Axle bearing does not come pressed onto the axle shaft, and wheel studs are not installed.

    Third member sold separately.

  • Winters Grand National Rear Ends
    Winters Grand National Rear Ends
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                Winters full floating Ford 9 inch Grand National rearend features lite weight steel hubs with brake rotor mounts. This Grand National rear end assembly comes complete with a new housing, two hubs, two brake rotors, two solid 31 spline axles, two drive flanges, ten lug nuts, rotor and drive flange bolts along with all the needed bearings and seals. 

    Now available in either a 5 x 5" or 5 x 4-3/4" bolt pattern and three different widths:

    • 58" centered
    • 60" centered
    • 62" with a 1/2" offset.

     

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