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Speedy Bill
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Differential Ring and Pinions

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Differential Ring and Pinions
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Differential Ring and Pinions

Choosing the right Ring & Pinion can be challenging.  Knowing which ratio, spline count, material, and shaft diameter to choose from can trip up even the most experienced mechanic.  Speedway Motors offers a huge selection of Ring & Pinions and the best techincal support around to help make sure you get the right parts for your car.  All our Ring and Pinions offer exceptional strength and service life at a price that can't be beat!

Classic Truck, Differential Ring and Pinions

Products
Featured Products
  • Product Rating: 4.00 Stars
    From: $149.99
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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
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  • Product Rating: 4.80 Stars
    From: $149.99
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    Many ratios to choose from.

    • 8.50" diameter ring gear
    • 1.625" diameter pinion
    • 10 ring gear bolts
    • 10 cover bolts
    • 30 pinion splines
    • Uses LH thread ring gear bolts - 7/16"-20

    Note: When replacing a stock 2.56 (or numerically lower) ratio, the carrier must also be replaced with a 2.73 or higher ratio's carrier to compensate for the difference in ring gear thickness.

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  • On Sale
    Product Rating: 5.00 Stars
    $169.99 $159.99
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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)

    Go to Product Page
  • On Sale
    No Reviews
    $169.99 $159.99
    Quick View Details
    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)

    Go to Product Page
  • On Sale
    No Reviews
    $169.99 $159.99
    Quick View Details
    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)

    Go to Product Page
  • On Sale
    No Reviews
    $169.99 $159.99
    Quick View Details
    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)

    Go to Product Page
  • On Sale
    Product Rating: 5.00 Stars
    $169.99 $159.99
    Quick View Details
    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)

    Go to Product Page
  • Product Rating: 4.50 Stars
    $164.99
    Quick View Details
    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)

    Go to Product Page
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$234.99 $134.99
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$189.99 $129.99
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Product Rating: 4.00 Stars
$169.99 $164.99
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Same Day Same Day Shipping
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Same Day
On Sale
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$169.99 $159.99
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In Stock
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Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
Same Day
On Sale
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$169.99 $159.99
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In Stock
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Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
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$459.99 $399.99
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$169.99 $159.99
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In Stock
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Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
Same Day
Product Rating: 5.00 Stars
$164.99
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Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
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$349.99
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$349.99 $249.99
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$349.99
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$175.99 $99.99
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$74.99 $59.99
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Product Rating: 4.50 Stars
$164.99
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$169.99 $159.99
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$199.99
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$169.99 $159.99
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Same day shipping available on this part if you order before 6PM CST.
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$189.99 $129.99
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In Stock
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Same day shipping available on this part if you order before 6PM CST.
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$349.99
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This part is in stock.
In Stock
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Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
Same Day
On Sale
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$169.99 $159.99
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$179.99 $149.99
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$169.99 $159.99
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In Stock
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Same day shipping available on this part if you order before 6PM CST.
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$164.99 $114.99
In Stock In Stock
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In Stock
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Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
Same Day
No Reviews
$164.99
In Stock In Stock
This part is in stock.
In Stock
|
Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
Same Day
On Sale
No Reviews
$169.99 $159.99
In Stock In Stock
This part is in stock.
In Stock
|
Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
Same Day
On Sale
Product Rating: 5.00 Stars
$169.99 $159.99
In Stock In Stock
This part is in stock.
In Stock
|
Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
Same Day
Garage Sale
No Reviews
$169.99 $149.99
In Stock In Stock
This part is in stock.
In Stock
|
Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
Same Day
No Reviews
$349.99
In Stock In Stock
This part is in stock.
In Stock
|
Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
Same Day
Product Rating: 5.00 Stars
$349.99
In Stock In Stock
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In Stock
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Same Day Same Day Shipping
Same day shipping available on this part if you order before 6PM CST.
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