Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Driveline and Axles

Shop Muscle Car Drivetrain At Speedway Motors

Speedway Motors is the muscle car enthusiasts source for drivetrain components at everyday low prices! Select from a large assortment of slip yokes and ring & pinions to fit any need. Plus, you can find an assortment of gears to fit your application, all in one stop. Speedway also has a great selection of street rod rear end overhaul kits and accessories, too – from gears, axles and slip yokes to bearings and brackets. We can even set you up with a complete Ford 9'' or a quick change rear end!

Featured Products
  • 9 Inch Ford Cut-to-Fit Axle with Bearing
    9 Inch Ford Cut-to-Fit Axle with Bearing
    (Part #91045127)
    x
                

    These steel axle shafts have a natural finish and are sold individually. They are perfect for small shops and will allow you to build your own custom width rear end easily. Axle length is measured from the flange to the end of the splines. Be sure to select your choice length; short or long, and either 28 or 31 spline.

    • 9 Inch Ford
    • 28 or 31 spline axle
    • Long or Short
    • Axle has the new style big bearing ends on it
    • Bearing measures 3.14"
    • 2-1/2" Offset
    • Drilled for 5 on 4-1/2", 5 on 4-3/4", and 5 on 5" wheel bolt patterns using 0.685" knurl dia.
    • PA20 set bearing
    • AR375 Torino retainer
    • Axle length is from the flange to the end of the splines
    • Axles sold each, not as a pair
    • Axles have 3 bolt patterns in them: 5 on 4-1/2", 5 on 4-3/4", and 5 on 5"

    For more information on determining the proper axle length and the Ford 9 Inch, be sure to check out our tech articles; How to Measure and ID Differential Housings and The Rearend Debate: Ford vs. Chevy.

    Notes:

    • Long:
      • 33" length with 9-1/4" of spline
    • Short:
      • 29.51" length with 10" of spline

    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.

    When cutting axles to desired lengths, it is recommended that the following procedures are performed:

    • Normal steel cutting machinery (cold saw, band saw, chop saw, etc.) 
    • Using a sleeve around the axle such as a small piece of PVC tubing - this allows:
      • The axle to be spun in place while being cut
      • A perimeter cut around the outer diameter assisting in keeping the cut square
      • Avoiding the build-up of too much heat by doing a straight cut (like a knife though a stick of butter) 

    To ensure you get the most out of your new 9 Inch components, it is recommended 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

     

  • 9 Inch Ford Rear End Overhaul Kit
    9 Inch Ford Rear End Overhaul Kit
    (Part #9190950)
    x
                This 9" Ford overhaul kit includes: pinion pilot, pinion shaft, pinion nut, pinion seal, gasket, shims, crush collar, sealant, gear marking grease, brush and Loctite. Ring gear bolts not included. 

    NOTE: All Ford 9" full spools use overhaul kit 9190950-31, even if they are a 28-spline spool. The 9190950-31 contains the large I.D. standard O.D. carrier bearings and pinion bearings needed for use with our full spools.

    If you are using the H.D. nodular iron center section which uses the large diameter carrier bearings, order kit 9190950-31s, which also includes the large pinion bearings for use with the Daytona pinion support.

    9" Ford Carrier Bearing Chart (GIF)  - Double check your bearing p/n.

  • 1/2 Inch Aluminum Nylock Bolt Nuts, 10 Pack
    1/2 Inch Aluminum Nylock Bolt Nuts, 10 Pack
    (Part #94004243)
    x
                

    1/2 Inch Aluminum Nylock Bolt Nuts, 10 Pack

    • 1/2"-20
    • Aluminum
    • Nylon insert
    • 10 pack

     

  • Currie 9+-98132 9 Inch Ford Cut-To-Fit 31 Spline Axle, 32 Inch Long
    Currie 9+-98132 9 Inch Ford Cut-To-Fit 31 Spline Axle, 32 Inch Long
    (Part #91045124)
    x
                

    These axles have 4" of spline which will allow you to cut a maximum of 3" of the spline off to obtain the correct length. This is perfect for small shops and will allow you to build your own custom width rear end easily. Axle length is measured from the flange to the end of the splines. All CTF 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.

    • 9 Inch Ford
    • 31 Spline
    • 32 Inch Long
    • 20-30% stronger than factory axles - increased depth allows for flex without breaking
    • Drilled for both 5 on 4-1/2" and 5 on 4-3/4" wheel bolt patterns
    • Includes both 7/16"-20 and 1/2"-20 wheel studs
    • Compatible with "Big Ford - New Style" housing and brakes with 2-1/2" offset
    • 4" of spline which allows you to cut a maximum of 3" of the spline off to obtain the correct length
    • Perfect for small shops that want to build your own custom width rearend
    • Includes a set-20 bearing and retainer you will have to press on
    • Axles sold each, not as a pair

    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.

    When cutting axles to desired lengths Currie recommends: 

    • Normal steel cutting machinery (cold saw, band saw, chop saw, etc.) 
    • Using a sleeve around the axle such as a small piece of PVC tubing - this allows:
      • The axle to be spun in place while being cut
      • A perimeter cut around the outer diameter assisting in keeping the cut square
      • Avoiding the build-up of too much heat by doing a straight cut (like a knife though a stick of butter) 

    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.

     

     
  • Motive Gear GT109031 Powertrax Grip Differential, 31 Spline 9 In Ford
    Motive Gear GT109031 Powertrax Grip Differential, 31 Spline 9 In Ford
    (Part #910109031)
    x
                

    Powertrax Grip Pro Traction Systems are the latest design in traction using 3 x 2 spiral gear technology for smooth, dependable operation that combines a limited-slip differential with the strength of a fully machined, forged steel case.


    Features:

    • Latest Design
    • Uses 3 x 2 Spiral Gear Technology
    • Comes Fully Assembled
    • Delivers Progressive & Variable Traction
    • Allows You to Control How Much Traction is Applied
    • Housed in a Fully Machined, Forged Steel Case
    • Fits 31 spline 9" Ford
  • SuperSeal 9 Inch Ford Pumpkin Gasket
    SuperSeal 9 Inch Ford Pumpkin Gasket
    (Part #9192300)
    x
                Our reuseable rear differential gaskets have a steel core and non-stick coating. Fits 9" Ford rear axle third member housings.
            
  • 1310 Series Chevy to Chevy U-Joint
    1310 Series Chevy to Chevy U-Joint
    (Part #91048315)
    x
                High quality, heat treated forged steel replacement U-joints. Comes with outside retaining clips.
            
  • 1979-81 GM Metric Wheel Bearing & Seal Kit
    1979-81 GM Metric Wheel Bearing & Seal Kit
    (Part #91031048)
    x
                

    This 1979-1981 GM Metric brake rotor bearing and seal kit services (2) rotors. Includes rotor bearing cups, cones and seals.

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"Muscle Car, Driveline and Axles" Page 1 of 16

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  • Dana Spicer 5-1350X Heavy Duty Cross U-Joint, 1350 Series, Non-Greaseable
    Dana Spicer 5-1350X Heavy Duty Cross U-Joint, 1350 Series, Non-Greaseable
    (Part #910451350)
    x
                

    Premium Spicer Life Series® u-joints excel in performance and life. The journal crosses are cold-formed from high quality steel for maximum strength. Non-Greasable u-joints have Ample grease reservoirs in each trunion to assure effective lubrication and are pre-filled with high quality synthetic lithium grease providing superior friction reduction and higher temperature resistance. Spicer Life Series® u-joints use Spicer's highest quality, triple-lip seal along with an external seal guard to resist the harshest conditions. So when you replace your car or truck universal joints with genuine Spicer technology, you can rest assured that you are helping to ensure the maximum life for your vehicle.

    Non-Greasable u-joints are stronger than greaseable units since they don't have any grease passages in them.

    • Heavy Duty U-joint
    • 1350 Series
    • 3.625 x 1.188
    • Non-Greaseable cross shaft


  • Dana Spicer 5-3615X U-Joint w/Coated Caps for Alum Driveshaft, 1350 Series
    Dana Spicer 5-3615X U-Joint w/Coated Caps for Alum Driveshaft, 1350 Series
    (Part #910453615)
    x
                

    Premium Spicer Life Series® u-joints excel in performance and life. The journal crosses are cold-formed from high quality steel for maximum strength. Non-Greasable u-joints have Ample grease reservoirs in each trunion to assure effective lubrication and are pre-filled with high quality synthetic lithium grease providing superior friction reduction and higher temperature resistance. Spicer Life Series® u-joints use Spicer's highest quality, triple-lip seal along with an external seal guard to resist the harshest conditions. So when you replace your car or truck universal joints with genuine Spicer technology, you can rest assured that you are helping to ensure the maximum life for your vehicle.

    Non-Greasable u-joints are stronger than greaseable units since they don't have any grease passages in them.

    • Coated Caps
    • 1350 Series
    • 3.625 x 1.188 
    • For use with Aluminum drive shafts
    • Non-Greaseable cross shaft


  • New 9 Inch Ford Iron Carrier Housing w/3.062 Inch Caps
    New 9 Inch Ford Iron Carrier Housing w/3.062 Inch Caps
    (Part #91048390)
    x
                

    If you have built anything that has serious horsepower you know the weak link can be the stock Ford 9" carrier. The pinion area tends to be weak and if you throw enough power at it, it will break. That won't happen with this brand new housing. 

    This new cast iron housing is built to take street/strip abuse without the fear of breaking. Case 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. You should also add a new heavy duty cast iron pinion support while you're at it. 

    • Forged Steel Caps
    • 1/2" Allen head grade 8 bolts
    • Heavy Duty Housing - 36 lbs.
    • Good for 1100 plus horsepower 
  • Bare 60 Inch Centered 9 Inch Ford Housing
    Bare 60 Inch Centered 9 Inch Ford Housing
    (Part #91046115)
    x
                

    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. You will need one 28-3/8" long axle and one 30-5/8" long axle.   Includes 8 T-bolts for the axle bearing retainer plates and 10 studs for the 3rd member.

    Third member sold separately.

     

  • OTB Gear 6870 Finned Cover For Round Back 9 Inch Rearend, Polished
    OTB Gear 6870 Finned Cover For Round Back 9 Inch Rearend, Polished
    (Part #91068700)
    x
                The perfect cure for the boring pumpkin. The sturdy and popular Ford 9"  rearend needs a little work to look stylish... at least thats what we  thought. This new cover is cast in A356 aircraft grade alloy and  available in a highly polished finish. No hardware is  needed to attach - we provide a generous supply of high temperature  adhesive (600 degree).
    • Excellent compliment to the new & improved Speedway 9" housing (910-46100)
    • Will fit most factory 9" Ford rear axle housings that have a bulge on the back of the housing for the ring gear, such as our axle # 910-46100 and other similar rear housings
    • No hardware is needed to attach
    • Generous supply of high temperature adhesive (600 degree) included
    • Can be powder coated after assembly
    • Will not fit Currie except, CE2000N made prior to September 2009
    • Will not fit axle housing used in Speedway #s 910-45100 and 715-700
    • Catalog correction, # 338 p# 61 shows the incorrect style of housing that this cover fits

    Instructions (PDF)

     

  • 9 Inch Ford Viton Pinion Seal
    9 Inch Ford Viton Pinion Seal
    (Part #912S18833V)
    x
                

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

  • Currie 1967-70 Mustang 9 Inch Replacement Rear Axle
    Currie 1967-70 Mustang 9 Inch Replacement Rear Axle
    (Part #91046770)
    x
                Please view the product's page for more information
            
  • Dana Spicer 5-3614X U-Joint w/Coated Caps for Alum Driveshaft, 1330 Series
    Dana Spicer 5-3614X U-Joint w/Coated Caps for Alum Driveshaft, 1330 Series
    (Part #910453614)
    x
                

    Premium Spicer Life Series® u-joints excel in performance and life. The journal crosses are cold-formed from high quality steel for maximum strength. Non-Greasable u-joints have Ample grease reservoirs in each trunion to assure effective lubrication and are pre-filled with high quality synthetic lithium grease providing superior friction reduction and higher temperature resistance. Spicer Life Series® u-joints use Spicer's highest quality, triple-lip seal along with an external seal guard to resist the harshest conditions. So when you replace your car or truck universal joints with genuine Spicer technology, you can rest assured that you are helping to ensure the maximum life for your vehicle.

    Non-Greasable u-joints are stronger than greaseable units since they don't have any grease passages in them.

    • Coated Caps
    • 1330 Series
    • 3.625 x 1.062 
    • For use with Aluminum drive shafts
    • Non-Greaseable cross shaft


  • Motive Gear GT109028 Powertrax Grip Differential, 28 Spline, 9 In Ford
    New
    Motive Gear GT109028 Powertrax Grip Differential, 28 Spline, 9 In Ford
    (Part #910109028)
    x
                
    Powertrax Grip Pro Traction Systems are the latest design in traction using 3 x 2 spiral gear technology for smooth, dependable operation that combines a limited-slip differential with the strength of a fully machined, forged steel case.

    Features:

    • Latest Posi-Trac Design
    • Uses 3 x 2 Spiral Gear Technology
    • Comes Fully Assembled
    • Delivers Progressive & Variable Traction
    • Allows You to Control How Much Traction is Applied
    • Housed in a Fully Machined, Forged Steel Case
    • Fits 28 spline 9" Ford
  • Fast Shafts BBSK-10 Billet U-Bolt Strap Kit, 1-1/16 Inch
    Fast Shafts BBSK-10 Billet U-Bolt Strap Kit, 1-1/16 Inch
    (Part #91048200)
    x
                

    NEVER OVERTIGHTEN U-BOLTS AGAIN !! 

    These universal billet strap kits fit 1310 U-Joint, Steel Girdle, Ford 9 inch.  They include case hardened bolts, nuts, flat and lock washers.

    • Billet strap kit
    • Fit 1310 U-Joint, Steel Girdle, Ford 9 inch
    • Include case hardened bolts, nuts, flat and lock washers
  • 9 Inch Ford Ring & Pinion, 4.56 Gear Ratio
    $164.99
    $169.99
    Product Rating: 4.00 Stars
    9 Inch Ford Ring & Pinion, 4.56 Gear Ratio
    (Part #91919457)
    x
                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)

  • 9 Inch Ford Ring & Pinion, 6.33 Gear Ratio
    $159.99
    $169.99
    9 Inch Ford Ring & Pinion, 6.33 Gear Ratio
    (Part #91919633)
    x
                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)

  • Currie 1968-72 GM A-Body 9 Inch Crate Rearend Kit
    Currie 1968-72 GM A-Body 9 Inch Crate Rearend Kit
    (Part #91006872)
    x
                

    Now you can have the strength and serviceability that Ford drivers have enjoyed for years underneath your GM vehicle. Currie Crate Rearends are built using the stock overall width, pinion offest, and mounting points of your original rear axle housing, making it a 100% bolt-in upgrade.  Designed as a bolt-in kit for 1968-72 Chevelle, El Camino, Skylark, Cutlass, LeMans/GTO, and 1970-72 Monte Carlo applications.

    • All new 9-Plus heavy duty housing
    • Urethane upper control arm busings installed
    • 31 spline performance axle shafts
    • 61-1/4" width
    • Torino-style late model large bearing housing ends
    • Third member studs installed
    • Axles drilled for stock 5 on 4-3/4" wheel bolt pattern
    • 7/16"-20 wheel studs pressed into axles
    • 1/4” thick heavy duty bearing retainer plates
    • Tapered Timken style wheel bearings pressed onto axle

    Note: Works with Speedway rear disc brake kits, 11" Ford Explorer disc brakes, and Wilwood disc brakes. Third member sold separately.

    How to Measure Your Housing Tech Tip (Link)

    To learn more about Currie's 9+ rearends, c

  • Ford 8 Inch Ring and Pinion Gears
    Ford 8 Inch Ring and Pinion Gears
    (Part #91908)
    x
                "Pro" brand gears offer excellent quality at a great price!  We offer a terrific selection of ratios for your 8" Ford rear axle.
            
  • Currie 9+-98129 9 Inch Ford Cut-To-Fit 31 Spline Axle, 29 Inch
    Currie 9+-98129 9 Inch Ford Cut-To-Fit 31 Spline Axle, 29 Inch
    (Part #91045122)
    x
                Please view the product's page for more information
            
  • Ford C4 Transmission Drive Shaft Slip Yoke
    Ford C4 Transmission Drive Shaft Slip Yoke
    (Part #80292440)
    x
                

    This Ford C-4 driveshaft slip yoke measures 6.5" from the center of the U-joint cup to the front end of the yoke. Fits transmissions with 28 spline tailshafts. Accepts 1310 style U-joints (popular Chevy) with 1-1/16" cups and a spread of 3-7/32".

     

    Note: Due to the length of the yoke, it will fit C4 transmissions ONLY, and is not recommended for use on an AOD transmission. The expressed measurement or length of the slip yoke is taken from the center of the u-joint to tip, not overall.

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