Stock Car Differentials

146 products fit your

Stock Car

146 products

Sort By:

Clear All

Department

Racing

Application

Oval Track

Race Type

Stock Car

Products

Speedway Motors 1964-Up GM Steel 8.5 Differential Cover

Speedway Motors |

#91014135

Speedway Motors 1964-Up GM Steel 8.5 Differential Cover

$41.99

/each

Economy 9 Inch Mini Spool and Cross Pin Kit, 28 Spline

Speedway Motors |

#91605052

Economy 9 Inch Mini Spool and Cross Pin Kit, 28 Spline

(2)

Spool Type:

Mini

Spline Count:

Sold in Quantity:

Kit

$48.99

/kit

Speedway Motors |

#91015078

Speedway Motors 64-Up 8.5" 10 Bolt Differential Cover, Aluminum

$124.99

/each

Motive Gear |

#9190910

9 Inch Ford Pinion Crush Sleeve

(6)

Material Type:

Steel

Finish:

Natural

Sold in Quantity:

Each

$7.99

/each

Speedway Motors |

#91081081

Speedway Motors Vertical Load Pumpkin Case, Extra Tough

(1)

Color:

Red

Sold in Quantity:

Each

$51.99

/each

Types of Differentials | Limited Slip vs Posi vs Locker

Comparing open diff vs limited slip vs locker differentials. Learn how each works, pros and cons, and which is best for your build.

GM 12-Bolt Rear End Identification & Upgrade Guide

Decode, ID, and upgrade your GM 12-bolt rear end. Learn axle specs, gear ratios, and best performance parts upgrades.

GM 10-Bolt Identification and Upgrades | 7.625, 7.5, 8.2, 8.5, 8.6

GM’s 10-bolt rear axle has been around since the 1960s, here’s how to determine if your junkyard find is worth taking home

How to Get into Stock Car Racing Dirt Track Style | Rules & Tips

Explore dirt stock car racing’s key terms, classes, rules, parts, and tips for success in this ultimate guide for new competitors.

How to Weld a Differential | Welded Diff vs Open Diff | Lincoln Locker Pros & Cons

The pros and cons of a welded diff vs open diff, plus what to know before learning how to weld your differential.

What is Differential Fluid | Gear Oil Weight Explained

Learn what gear oils do for your differential and how to choose the best gear lubricant for your application's needs

Open vs. Limited Slip Differentials

A short article explaining the main differences between open and limited slip differentials.

What Goes in to a Speedway Differential

A brief overview of the steps Speedway Motors takes to ensure you get a quality differential.

What is Hobby Stock Car Racing | Rules, Build Setups, & FAQs

Why the budget-friendly Hobby Stock class is grassroots motorsports at its finest, and perfect for first-time dirt track racers.

Chevy Trucks: Rear DJM Suspension Drop

Read how to lower the rear of your 92-98 Chevy pickup using a DJM lowering kit. These tips are helpful for smooth completion.

Eaton Corp 187SL17B Detroit Locker Ford 9" 31 Spline Differential

Eaton Corporation |

#22487117

Eaton Corp 187SL17B Detroit Locker Ford 9" 31 Spline Differential

Axle Splines:

Sold in Quantity:

Each

$884.99

/each

Spectre 4688 Differential Cover Bolt Set

Spectre Performance |

#4654688

Spectre 4688 Differential Cover Bolt Set

(4)

Material Type:

Steel

Sold in Quantity:

Set

$12.99

/each

Premium 9 Inch Mini Spool and Cross Pin Kit, 31 Spline

Speedway Motors |

#91605046

Premium 9 Inch Mini Spool and Cross Pin Kit, 31 Spline

(4)

Spool Type:

Mini

Spline Count:

$48.99

/kit

Knuckle Saver Rear End Plugs - 9/16 Inch

Speedway Motors |

#91045900

Knuckle Saver Rear End Plugs - 9/16 Inch

(5)

Material Type:

Aluminum

Sold in Quantity:

Pair

$27.99

/pair

-7%

Mr Gasket |

#55082

Mr Gasket 82 Rear End Differential Gasket, Ford 9 Inch

(2)

GTIN Code:

084041000823

$26.62

/each

$28.80

Economy 9 Inch Mini Spool and Cross Pin Kit, 31 Spline

Speedway Motors |

#91605050

Economy 9 Inch Mini Spool and Cross Pin Kit, 31 Spline

Spool Type:

Mini

Spline Count:

Sold in Quantity:

Kit

$48.99

/kit

-7%

B&M 70502 Cast Alum Differential Cover for GM 8.2", 8.5", & 8.6"

B&M |

#20070502

B&M 70502 Cast Alum Differential Cover for GM 8.2", 8.5", & 8.6"

Material Type:

Aluminum

Gaskets Included:

$334.95

/each

$363.95

Currie |

#91048377

Currie CE-4026C Ford 9 Inch Nodular Third Member Carrier, 3.062

Sold in Quantity:

Each

$320.00

/each

PEM Racing |

#91048615

PEM Racing FS940LW 40 Spline Spool Lite 9" Ford

Spool Type:

Full

Spline Count:

Spool Weight:

Lightweight

$149.99

/each

Winters |

#8027794ASBK

Winters 7794ASBK Short Black Gear Cover Nut

Material Type:

Aluminum

Finish:

Black

$5.99

/each

Ford 9-Inch Daytona Nodular Iron Pinion Support, Black

Speedway Motors |

#91648399

Ford 9-Inch Daytona Nodular Iron Pinion Support, Black

Material Type:

Cast Iron

Finish:

Powder Coated

Sold in Quantity:

Each

$119.99

/each

Winters |

#8027301AC

Winters 7301AC 2-1/2 Inch Grand National Angler Contact Bearing

Material Type:

Steel

Sold in Quantity:

Each

$71.99

/each

Ford 9 Inch Daytona Pinion Seal Retainer

Speedway Motors |

#91048395

Ford 9 Inch Daytona Pinion Seal Retainer

Material Type:

Steel

Sold in Quantity:

Each

$31.99

/each

Winters |

#8028659

Winters 8659 Billet Cover Replacement Bearing

(2)

Overall Length:

3.6"

Material Type:

Billet Aluminum

$51.99

/each

Ford 9 Inch Standard Pinion Seal Retainer

Speedway Motors |

#91048391

Ford 9 Inch Standard Pinion Seal Retainer

Material Type:

Stainless Steel

Sold in Quantity:

Each

$30.99

/each

Ford 8 and 9 Inch Third Member Mounting Hardware & RTV Sealant

Speedway Motors |

#9101454

Ford 8 and 9 Inch Third Member Mounting Hardware & RTV Sealant

Thread Type:

RH Female

Wrench Type:

Hex

Color:

Silver

$43.99

/kit

Speedway Motors |

#6557520

Speedway 9 Inch Ford Chromoly Cross Pin

(8)

Material Type:

Steel

Sold in Quantity:

Each

$23.99

/each

AFCO |

#10660090

AFCO Rear End Filler

(1)

$59.99

/each

Ford 9 Inch Ring Gear Bolts, 7/16-20 x 1 Inch, Hex, Set/10

Speedway Motors |

#9160916

Ford 9 Inch Ring Gear Bolts, 7/16-20 x 1 Inch, Hex, Set/10

(1)

Material Type:

Steel

Sold in Quantity:

Set

$27.99

/set

-7%

Mr Gasket |

#55084B

Mr Gasket 84B Rear End Differential Gasket, 10 Bolt, 8.5 GM

GTIN Code:

084041300848

$22.17

/each

$23.99

Motive Gear |

#91956196

Motive Gear 14056196 Pinion Shaft Lock Bolt, GM 7.5" / 7.625"

Wrench Type:

Hex

Sold in Quantity:

Each

$3.99

/each

Moroso |

#54534800

Moroso 34800 Gear Lube, Climbing, 1 Qt

$33.99

/each

Holley |

#9190205

Holley Heat Treated Pinion Nut

Color:

Natural

Sold in Quantity:

Each

$9.99

/each

Eaton Corp. 912A317 Detroit Truetrac GM 7.5/7.6 Differential

Eaton Corporation |

#22412317

Eaton Corp. 912A317 Detroit Truetrac GM 7.5/7.6 Differential

Axle Splines:

Sold in Quantity:

Each

$623.99

/each

Yukon Gear |

#91985000

Yukon Gear YK GM8.5 Master Overhaul Kit, GM 8.5 Differential

(2)

GTIN Code:

883584140825

Sold in Quantity:

Kit

$267.04

/each

Speedway Motors |

#91048406

Speedway Motors Ford 9 Inch Pinion Support, 10 Bolt

(1)

Material Type:

Aluminum

Sold in Quantity:

Each

$74.99

/each

-28%

Yukon Gear |

#UP224704

Yukon Gear YK GM8.5 Master Overhaul Kit, GM 8.5 Differential

Sold in Quantity:

Kit

Garage Sale Type:

Blemished

$186.99

/each

$259.89

#91047840

Garage Sale - Hollow Rear Cover Studs

(1)

$2.59

/bag

-80%

Hub Assembly Slider For Halibrand Shifter Rearend

Speedway Motors |

#4152961409

Hub Assembly Slider For Halibrand Shifter Rearend

Sold in Quantity:

Each

Garage Sale Type:

Discontinued

$9.65

/each

$48.99

-9%

Ford 9 Inch Posi Differential 3rd Member, 31 Spl, 3.50 Gear Ratio

Speedway Motors |

#UP236555

Ford 9 Inch Posi Differential 3rd Member, 31 Spl, 3.50 Gear Ratio

Garage Sale Type:

Blemished

Differential Type:

Limited Slip

Housing Material:

Nodular Iron

$959.99

/each

$1,058.99

Richmond Gear |

#91028000

Richmond Gear 92-0690-2800 Powertrax Ford 9 Inch Locking Differential

(1)

Garage Sale Type:

Open Box

Axle Splines:

Sold in Quantity:

Each

$450.54

/each

Showing 1 - 144 of 146 results

Shop Feedback:

Did you find what you are looking for?

Stock Car Differentials

Part

Brand

Rear Axle Family

Sanctioning Body

Availability

Discounts

Price

Customer Rating

Products

Speedway Motors 1964-Up GM Steel 8.5 Differential Cover

Economy 9 Inch Mini Spool and Cross Pin Kit, 28 Spline

Speedway Motors 64-Up 8.5" 10 Bolt Differential Cover, Aluminum

9 Inch Ford Pinion Crush Sleeve

Speedway Motors Vertical Load Pumpkin Case, Extra Tough

Related Articles

Eaton Corp 187SL17B Detroit Locker Ford 9" 31 Spline Differential

Spectre 4688 Differential Cover Bolt Set

Premium 9 Inch Mini Spool and Cross Pin Kit, 31 Spline

Knuckle Saver Rear End Plugs - 9/16 Inch

Mr Gasket 82 Rear End Differential Gasket, Ford 9 Inch

Economy 9 Inch Mini Spool and Cross Pin Kit, 31 Spline

B&M 70502 Cast Alum Differential Cover for GM 8.2", 8.5", & 8.6"

Currie CE-4026C Ford 9 Inch Nodular Third Member Carrier, 3.062

PEM Racing FS940LW 40 Spline Spool Lite 9" Ford

Winters 7794ASBK Short Black Gear Cover Nut

Ford 9-Inch Daytona Nodular Iron Pinion Support, Black

Winters 7301AC 2-1/2 Inch Grand National Angler Contact Bearing

Ford 9 Inch Daytona Pinion Seal Retainer

Winters 8659 Billet Cover Replacement Bearing

Ford 9 Inch Standard Pinion Seal Retainer

Ford 8 and 9 Inch Third Member Mounting Hardware & RTV Sealant

Speedway 9 Inch Ford Chromoly Cross Pin

AFCO Rear End Filler

Ford 9 Inch Ring Gear Bolts, 7/16-20 x 1 Inch, Hex, Set/10

Mr Gasket 84B Rear End Differential Gasket, 10 Bolt, 8.5 GM

Motive Gear 14056196 Pinion Shaft Lock Bolt, GM 7.5" / 7.625"

Moroso 34800 Gear Lube, Climbing, 1 Qt

Holley Heat Treated Pinion Nut

Eaton Corp. 912A317 Detroit Truetrac GM 7.5/7.6 Differential

Yukon Gear YK GM8.5 Master Overhaul Kit, GM 8.5 Differential

Speedway Motors Ford 9 Inch Pinion Support, 10 Bolt

Yukon Gear YK GM8.5 Master Overhaul Kit, GM 8.5 Differential

Garage Sale - Hollow Rear Cover Studs

Hub Assembly Slider For Halibrand Shifter Rearend

Ford 9 Inch Posi Differential 3rd Member, 31 Spl, 3.50 Gear Ratio

Richmond Gear 92-0690-2800 Powertrax Ford 9 Inch Locking Differential