Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Street Rod Drivetrain At Speedway Motors

Speedway Motors is the street rodder's source for street rod 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 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!

"Street Rod, Differential" Page 1 of 5

  • 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.

  • Winters Performance POSTER-10 10-Spline Quick Change Gear Chart
    Winters Performance POSTER-10 10-Spline Quick Change Gear Chart
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                Perfect for trailers or the race shop!  19" x 25"  Laminated.
            
  • Housing Studs, 9 Inch Carrier
    Housing Studs, 9 Inch Carrier
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                Housing studs and ring gear bolts complete the package for your racing or street use 9" Ford axle. 

    Side bell thru bolts torque to 40-45 lbs.

  • 9 Inch Ford Ring & Pinion, 3.50 Gear Ratio
    9 Inch Ford Ring & Pinion, 3.50 Gear Ratio
    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)

  • New Ford 9 Inch Aluminum Carrier Housing w/3.062 Inch Caps
    New Ford 9 Inch Aluminum Carrier Housing w/3.062 Inch Caps
    x
                

    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.

  • Low Rear Axle Bracket 5 3/4 Inch
    Low Rear Axle Bracket 5 3/4 Inch
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                All brackets are for 3" rear axle application.

    Low Rear Axle Bracket
    Mount radius rods lower than rear axle. 3/8" steel. 5-3/4" long. 3/8" holes.
  • Pinion Nut for 9 Inch Ford
    $4.99
    Product Rating: 5.00 Stars
    Pinion Nut for 9 Inch Ford
    x
                Thread pitch on this pinion nut is 3/4"-20. Fits 8" and 9" Ford rear axles.
            
  • Ring Gear Bolts for 9 Inch Ford, 10 PK
    Ring Gear Bolts for 9 Inch Ford, 10 PK
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                Ring gear bolts for 9" Ford. Pack of ten.
            
  • 9 Inch Ford Solid Pinion Bearing Spacer Kit with Shims
    9 Inch Ford Solid Pinion Bearing Spacer Kit with Shims
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    Ford 9" solid pinion bearing spacer kit. Designed to retain your pinion depth settings for greater strength and reliability. Spacers can be reused if disassembly of the carrier is required. Shims included.

  • Winters Quick Change Gears, 10 Spline
    From: $59.99
    Product Rating: 4.67 Stars
    Winters Quick Change Gears, 10 Spline
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    • 8620 Steel
    • Heat Treated
    • CNC Machined
    • 10 spline
    • 1-1/4" Width

    Winters Quick Change Gear Chart

  • 8 Inch Ford Rear End Overhaul Kit
    8 Inch Ford Rear End Overhaul Kit
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                Ford 8" Overhaul Kit includes all bearings, pinion nut, pinion seal, gasket, shims, crush collar, sealant, gear marking grease, brush and Loctite.
            
  • SuperSeal 9 Inch Ford Pumpkin Gasket
    SuperSeal 9 Inch Ford Pumpkin Gasket
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                Our reuseable rear differential gaskets have a steel core and non-stick coating. Fits 9" Ford rear axle third member housings.
            
  • Dana 60 Rear End Cover
    $29.99
    Dana 60 Rear End Cover
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     Chrome rear end cover for Dana 60.

  • 9 Inch Ford Pinion Crush Sleeve
    9 Inch Ford Pinion Crush Sleeve
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                Stock replacement crush collar/sleeve for Ford 9" rear axles. Collapsible spacer installs on the pinion and preloads the pinion bearings. Crush sleeves are not reusable and must be replaced if the pinion nut is loosened or removed.
            
  • Richmond Gear 92-0690-2800 Powertrax Ford 9 Inch Locking Differential
    Richmond Gear 92-0690-2800 Powertrax Ford 9 Inch Locking Differential
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                Please view the product's page for more information
            
  • Rear Axle Breather
    $9.99
    Product Rating: 4.80 Stars
    Rear Axle Breather
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    This rear axle breather will stop lube from being flung out of rear axle housing. Allows "breathing" of rear axle assembly. 7/16"-20 thread. Polished!

    Install with thread sealant or Teflon tape. Can be used on various applications with appropriate plumbing components.

  • Best Gasket 10051 1932-48 Ford Rear Axle Gasket Set
    Best Gasket 10051 1932-48 Ford Rear Axle Gasket Set
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                Set includes 4 banjo gaskets.  
    • White gasket thickness - .003"
    • Ivory gasket thickness - .005" 
    • Green gasket thickness - .007"
    • Blue gasket thickness - .009"
    Set also includes a torque tube gasket, Speedometer gasket, casing gasket & cork coupler housing strip gasket.
  • 9 Inch Ford Housing Cover
    $14.99
    9 Inch Ford Housing Cover
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                Aluminum cover to keep 9" housing clean when you have your third member out.
            
  • 9 Inch Ford Ring & Pinion, 3.70 Gear Ratio
    9 Inch Ford Ring & Pinion, 3.70 Gear Ratio
    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)

  • 1935-1948 Ford/Mercury High Speed Ring and Pinion Gear Set, 3.54 Gear Ratio
    1935-1948 Ford/Mercury High Speed Ring and Pinion Gear Set, 3.54 Gear Ratio
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    These fit 1935-1948 passenger cars or 1935-1941 Ford 1/2 ton pick-ups (no 3/4 ton or larger). All gear sets are direct replacements for stock, non-quickchange rear axles. 6-spline input.

    • Fits 1935-48 Passenger Cars or 1935-41 Ford 1/2 ton pickups
    • Does not fit 3/4 ton or larger
    • Stock (non-quick change)
    • All gear sets are direct replacements
    • Six spline input
    • 3.54 gear ratio

    Installation Instructions  (PDF)

  • 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)

  • 78-Up GM 10-Bolt with 7.5 Inch Ring Gear Rear End Differential Axle Cover
    78-Up GM 10-Bolt with 7.5 Inch Ring Gear Rear End Differential Axle Cover
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    Add some visual attitude to your rear axle with these chrome differential covers. They're stamped from heavy-gauge steel to ward off those pesky oil leaks, and chrome plated for long lasting good looks.

    GM 10-Bolt 7.5 Inch Rearend Differential Cover

    • Approximately 10-3/4" side to side
    • Approximately 10" up and down
    • It has a squared off oval shape
    • Mounts with 10 bolts

    Fits:

    • Many 1978-Up GM midsize cars
    • 1982-Up Camaro/Firebird
    • S-10/S-15 pickups

     

  • 9 Inch Ford Ring & Pinion, 3.89 Gear Ratio
    9 Inch Ford Ring & Pinion, 3.89 Gear Ratio
    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, 6.00 Gear Ratio
    $159.99
    $169.99
    9 Inch Ford Ring & Pinion, 6.00 Gear Ratio
    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)

  • GM 10 Bolt Ring and Pinion Instal Kit, 8.5 R&P, 30 Spline
    GM 10 Bolt Ring and Pinion Instal Kit, 8.5 R&P, 30 Spline
    x
                Everything you need for a complete ring and pinion installation job. 

    Kit Includes:

    • cover gasket
    • crush sleeve
    • marking compound and brush
    • pinion and carrier bearings
    • pinion nut and washer
    • pinion seal
    • thread locking compound
    • sealer

    Note: Pinion-depth shims are not included. 

  • 9 Inch Ford Ring & Pinion, 4.11 Gear Ratio
    9 Inch Ford Ring & Pinion, 4.11 Gear Ratio
    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, 4.86 Gear Ratio
    $159.99
    $169.99
    9 Inch Ford Ring & Pinion, 4.86 Gear Ratio
    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)

  • Jag Finned Aluminum Rear Cover, Unpolished
    Jag Finned Aluminum Rear Cover, Unpolished
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                Give your Jag rearend a sleek, distinctive look. Finned aluminum construction with an unpolished finish. Includes fill hole and vent.
            
  • Short Rear Axle Brackets
    $13.99
    Product Rating: 5.00 Stars
    Short Rear Axle Brackets
    x
                

    "Short" rear axle bracket designed for use with Speedway rear radius rods. 

    • Fits 3" diameter rear axle tube
    • 3/8" thick steel
    • 3/8" diameter holes
  • Halibrand V8 Quick Change Spacer Kit, 3 Pack
    Halibrand V8 Quick Change Spacer Kit, 3 Pack
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                We found a limited supply of these rare Halibrand V8 quick change parts. 

    Click to See Application Chart (Link)

  • Fel-Pro Gaskets P2302 9 Inch Ford Pumpkin Gaskets
    Fel-Pro Gaskets P2302 9 Inch Ford Pumpkin Gaskets
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    Lose the RTV silicone! With Fel-Pro reuseable third member housing gaskets, you don’t have to worry about applying an RTV and waiting for it to set up to seal. In addition, installing precut Fel-Pro gaskets helps eliminate the risk of contaminating the differential housing with RTV.

    Gaskets have a steel core and non-stick coating.

  • GM 10 Bolt 7.5 Inch Ring and Pinion
    From: $149.99
    Product Rating: 4.00 Stars
    GM 10 Bolt 7.5 Inch Ring and Pinion
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    IMPORTANT NOTE: Ring & Pinion  ratios are designed for use with a "3 series" carrier. If you intend to install these ratios with a "2 series" carrier, you need to use ring gear spacer #910-48305.

    • 7.50" diameter ring gear
    • 1.438" diameter pinion
    • 27 splines
  • NEW Ford 9 Inch Posi Traction Third Member
    NEW Ford 9 Inch Posi Traction Third Member
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    Our completely NEW 9" Ford third members start with a heavy duty cast iron carrier featuring the larger, cast iron Daytona pinion support. Then we use a Currie 9+ limited slip differential in your choice of 28 or 31 spline and a 3.50, 3.70, 3.89, 4.11, or 4.56 gear ratio ring & pinion. Also includes NEW bearings and seals. Shipped ready for use in a plastic case.


    Currie Differential Tech Bulletin (PDF)

  • 1964-72 GM 12-Bolt Rear End Differential Axle Cover
    1964-72 GM 12-Bolt Rear End Differential Axle Cover
    x
                

    Add some visual attitude to your rear axle with these chrome differential covers. They're stamped from heavy-gauge steel to ward off those pesky oil leaks, and chrome plated for long lasting good looks.

    GM 12-Bolt Rearend Differential Cover

    Fits:

    • Most 1964-72 GM corporate axles

     

     

  • Bare 60 Inch Centered 9 Inch Ford Housing
    Bare 60 Inch Centered 9 Inch Ford Housing
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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. 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.

     

  • 1935-1948 Ford/Mercury High Speed Ring and Pinion Gear Set, 3.25 Gear Ratio
    1935-1948 Ford/Mercury High Speed Ring and Pinion Gear Set, 3.25 Gear Ratio
    x
                These fit 1935-1948 passenger cars or 1935-1941 Ford 1/2 ton pick-ups (no 3/4 ton or larger). All gear sets are direct replacements for stock, non-quickchange rear axles. 6-spline input. 

    Installation Instructions  (PDF)

  • Jag Finned Aluminum Rear Cover, Polished
    Jag Finned Aluminum Rear Cover, Polished
    x
                Give your Jag rearend a sleek, distinctive look. Finned aluminum construction with a fully polished finish. Includes fill hole and vent.
            
  • New 9 Inch Ford Iron Carrier Housing w/3.062 Inch Caps
    New 9 Inch Ford Iron Carrier Housing w/3.062 Inch Caps
    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 
  • OTB Gear 6870 Finned Cover For Round Back 9 Inch Rearend, Polished
    OTB Gear 6870 Finned Cover For Round Back 9 Inch Rearend, Polished
    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)

     

  • Halibrand Ring and Pinion Gears, Loaded w/ Bearings, 3.78 Gear Ratio
    Halibrand Ring and Pinion Gears, Loaded w/ Bearings, 3.78 Gear Ratio
    x
                

    Highest quality replacement gear set made. Fits all 6-spline Halibrand V8 quick changes.

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