Differentials and Rear-End Components
Circle Track Differentials & Rear End Components at JJ Motorsports
Differentials and rear-end components are essential for transferring power to the wheels while ensuring balance and control during cornering in circle track racing. Engineered for maximum durability, these parts are tailored for late models and modifieds, delivering reliable performance under extreme conditions. Pair them with advanced drivetrain enhancements for a smooth, powerful drive that keeps your vehicle competitive on the track.
Shop trusted brands like Allstar Performance for versatile components, PEM for stamped housings, and Winters for quick-change options. Explore related categories such as Circle Track Front/Rear End Assemblies for complete kits or Circle Track Axle Shafts for durable upgrades.
Top Circle Track Differentials & Rear End Components
- Dirt Street Stock/Hobby Stock Floater Rear End 2.5" GN Kit – Kit includes Floater Metric Housing 60" 2.5" Grand National, (2) Wilwood Brake Rotors .810 x 11.75, (2) 31-Spline Solid Axles, (2) 5x5 Rear Hub Kits Steel with 5/8-11 Studs, (2) Wheel Hub Bearing Kits with Seals, Lug Nuts, Rotor Bolts.
- Allstar Performance Remote Fill Tank ALL36110 – Remote Fill Tank, Flush Mount, 10 AN Outlet, Aluminum, Each.
- PEM New Stamped Floater Metric Housing 60in Cent HNMK3003005 – Rear Axle Housing, Ford 9 in Floater, 60 in Wide, Centered, 3 in Tubes, 5 x 5 in Hub, 0.810 in Thick Rotors, Steel, Natural, Each.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Allstar Performance Shim Kit for Dana 60 and 61 Axles 1966-1998 ALL68634
ALLSTAR PERFORMANCE
$61.99Proper ring and pinion setup is critical to differential longevity and performance. Incorrect shimming leads to premature wear, noise, and potential failure under load. This Allstar Performance Shim Kit gives you all the components needed for precise...ALL68634- SKU:
- ALL68634
- Availability:
- Ships Same Business Day
- Weight:
- 2.22 LBS
- MFG Part #:
- ALL68634
$61.99 -
Allstar Performance Shim Kit Dana 44 1967-1997 ALL68633
ALLSTAR PERFORMANCE
$39.99Dana 44 differentials demand precision shimming to maintain proper bearing preload and minimize backlash—critical factors that directly impact handling response, tire wear, and drivetrain longevity. This Allstar Performance Shim Kit delivers a complete...ALL68633- SKU:
- ALL68633
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
- MFG Part #:
- ALL68633
$39.99 -
Allstar Performance Shim Kit for Mopar 8-3/4 489 Case ALL68631
ALLSTAR PERFORMANCE
$54.99Setting up a Mopar 8-3/4 rear axle requires precise shimming and pre-load adjustment—tasks that demand the right components and zero guesswork. This Allstar Performance Shim Kit eliminates the frustration of sourcing individual hard-to-find parts by...ALL68631- SKU:
- ALL68631
- Availability:
- Ships Same Business Day
- Weight:
- 2.13 LBS
- MFG Part #:
- ALL68631
$54.99 -
Allstar Performance Shim Kit GM 8.2in 10 Bolt 1964-72 ALL68622
ALLSTAR PERFORMANCE
$47.99Proper pinion depth and gear preload are critical to differential longevity and performance—incorrect setup leads to premature wear, noise, and catastrophic failure. This complete shim kit gives you all the components needed to dial in your GM 8.2-inch...ALL68622- SKU:
- ALL68622
- Availability:
- Ships Same Business Day
- Weight:
- 1.88 LBS
- MFG Part #:
- ALL68622
$47.99 -
Allstar Performance Shim Kit GM 8.5in 10 Bolt 1970-98 ALL68621
ALLSTAR PERFORMANCE
$43.99Proper differential setup is critical for consistent performance and longevity, especially in high-stress racing applications. This comprehensive shim kit gives you the precision adjustment needed to dial in pinion depth and preload on GM 8.5-inch...ALL68621- SKU:
- ALL68621
- Availability:
- Ships Same Business Day
- Weight:
- 2.07 LBS
- MFG Part #:
- ALL68621
$43.99 -
Allstar Performance Shim Kit for GM 8.875" 12-Bolt Passenger Car Axle ALL68619
ALLSTAR PERFORMANCE
$47.99Proper differential assembly is critical for maintaining driveline integrity and consistent performance under load. This comprehensive shim kit eliminates guesswork by providing all necessary components for correct pinion depth and bearing preload setup...ALL68619- SKU:
- ALL68619
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MFG Part #:
- ALL68619
$47.99 -
Allstar Performance Differential Shim Kit for GM 8.875in 12-Bolt Truck ALL68618
ALLSTAR PERFORMANCE
$49.99A properly shimmed and assembled differential is critical to reducing backlash, maintaining gear alignment, and preventing premature wear in your GM 12-bolt truck rear end. This Allstar Performance kit supplies all the precision components needed for...ALL68618- SKU:
- ALL68618
- Availability:
- Ships Same Business Day
- Weight:
- 2.21 LBS
- MFG Part #:
- ALL68618
$49.99 -
Allstar Performance Shim Kit GM 7.5in 10 Bolt 1982-1998 ALL68615
ALLSTAR PERFORMANCE
$43.99Proper pinion depth and bearing preload are critical to differential longevity and performance—improper setup leads to premature wear, noise, and catastrophic failure. This complete shim kit eliminates guesswork during assembly or rebuild, ensuring your...ALL68615- SKU:
- ALL68615
- Availability:
- Ships Same Business Day
- Weight:
- 1.79 LBS
- MFG Part #:
- ALL68615
$43.99 -
Allstar Performance Shim Kit Ford 9in with Crush Sleeve ALL68611
ALLSTAR PERFORMANCE
$32.99Proper pinion preload and differential setup are critical for Ford 9-inch rear end reliability and performance—improper shimming leads to premature wear, noise, and catastrophic failure. The Allstar Performance Shim Kit eliminates guesswork by providing...ALL68611- SKU:
- ALL68611
- Availability:
- Ships Same Business Day
- Weight:
- 1.68 LBS
- MFG Part #:
- ALL68611
$32.99 -
Allstar Performance Shim Kit Ford 9in with Solid Spacer ALL68610
ALLSTAR PERFORMANCE
$41.99Proper pinion depth and gear preload are critical to Ford 9-inch differential performance and longevity. This Allstar shim kit gives you the precision adjustment tools needed to dial in exact bearing preload and minimize backlash, ensuring maximum power...ALL68610- SKU:
- ALL68610
- Availability:
- Ships Same Business Day
- Weight:
- 1.74 LBS
- MFG Part #:
- ALL68610
$41.99 -
Allstar Performance Bearing Kit for Ford 9" 3.250" Carrier Bearing with Daytona 28-Spline Pinion Support and Solid Spacer ALL68543
ALLSTAR PERFORMANCE
$129.99A Ford 9-inch rear end is only as reliable as its differential assembly, and this Allstar Performance bearing kit eliminates guesswork by providing every component you need in one package. Whether you're rebuilding after a track session or starting fresh...ALL68543- SKU:
- ALL68543
- Availability:
- Ships Same Business Day
- Weight:
- 6.08 LBS
- MFG Part #:
- ALL68543
$129.99 -
Allstar Performance Bearing Kit for Ford 9in 3.250 Carrier Bearing 28-Spline Pinion Support ALL68542
ALLSTAR PERFORMANCE
$119.99If you're running a Ford 9-inch rear axle at the track or in serious street duty, the integrity of your carrier and pinion support directly impacts both performance and reliability. This Allstar Performance Bearing Kit consolidates the critical...ALL68542- SKU:
- ALL68542
- Availability:
- Ships Same Business Day
- Weight:
- 6.03 LBS
- MFG Part #:
- ALL68542
$119.99Qty in Cart: 0Quantity:Price:$119.99Subtotal: -
Allstar Performance Bearing Kit for Ford 9in 3.250 Carrier Bearing with 35-Spline Pinion Support ALL68541
ALLSTAR PERFORMANCE
$142.99A properly spec'd bearing kit is non-negotiable when rebuilding a Ford 9-inch differential—cheap or incomplete kits lead to premature wear, noise, and catastrophic failure under boost or sustained load. This Allstar Performance kit supplies everything...ALL68541- SKU:
- ALL68541
- Availability:
- Ships Same Business Day
- Weight:
- 5.84 LBS
- MFG Part #:
- ALL68541
$142.99 -
Allstar Performance Bearing Kit for Ford 9" 3.250" Carrier Bearing with MW or Strange 28-Spline Pinion Support No Spacer or Crush Sleeve ALL68540
ALLSTAR PERFORMANCE
$129.99If you're running a Ford 9-inch rear axle with a MW or Strange 28-spline pinion support, this Allstar Performance Bearing Kit is essential for maintaining precise carrier geometry and supporting heavy loads during acceleration and cornering. A properly...ALL68540- SKU:
- ALL68540
- Availability:
- Ships Same Business Day
- Weight:
- 5.85 LBS
- MFG Part #:
- ALL68540
$129.99 -
Allstar Performance Bearing Kit Ford 9in 3.062 Bearing ALL68539
ALLSTAR PERFORMANCE
$129.99A complete differential bearing installation demands precision components and proper spacing to ensure longevity and consistent performance under load. This Allstar Performance kit consolidates everything you need—bearings, seals, shims, and...ALL68539- SKU:
- ALL68539
- Availability:
- Ships Same Business Day
- Weight:
- 5.88 LBS
- MFG Part #:
- ALL68539
$129.99 -
Allstar Performance Bearing Kit Ford 9in 3.062 Bearing ALL68538
ALLSTAR PERFORMANCE
$118.99A quality differential bearing installation requires precision components and proper assembly—cutting corners here leads to premature wear, noise, and catastrophic failure. The Allstar Performance Bearing Kit Ford 9in supplies everything needed for a...ALL68538- SKU:
- ALL68538
- Availability:
- Ships Same Business Day
- Weight:
- 5.93 LBS
- MFG Part #:
- ALL68538
$118.99 -
Allstar Performance Bearing Kit for Mopar 8-3/4" with 742 Casting ALL68537
ALLSTAR PERFORMANCE
$144.99A worn or improperly assembled differential bearing kit will introduce play, noise, and premature wear to your Mopar 8-3/4" rear axle—ultimately compromising handling and reliability. The Allstar Performance ALL68537 Bearing Kit delivers a complete,...ALL68537- SKU:
- ALL68537
- Availability:
- Ships Same Business Day
- Weight:
- 7.29 LBS
- MFG Part #:
- ALL68537
$144.99 -
Allstar Performance Bearing Kit for Dana 60 and 61 9.75-inch Axles ALL68534
ALLSTAR PERFORMANCE
$167.99A quality differential bearing kit is non-negotiable for Dana 60 and 61 axle rebuilds—it ensures proper preload, eliminates backlash, and extends gear life under sustained racing loads. This comprehensive Allstar Performance kit includes everything you...ALL68534- SKU:
- ALL68534
- Availability:
- Ships Same Business Day
- Weight:
- 8.43 LBS
- MFG Part #:
- ALL68534
$167.99 -
Allstar Performance Bearing Kit for Mopar 8-3/4 489 Case 2.000 I.D. Carrier Bearings ALL68532
ALLSTAR PERFORMANCE
$164.99If you're rebuilding or servicing a Mopar 8-3/4-inch rear axle, a quality bearing kit isn't optional—it's essential for reliable performance and longevity. This Allstar Performance kit eliminates the guesswork by bundling every component you need for a...ALL68532- SKU:
- ALL68532
- Availability:
- Ships Same Business Day
- Weight:
- 6.08 LBS
- MFG Part #:
- ALL68532
$164.99 -
Allstar Performance Bearing Kit for Mopar 8-3/4 489 Case 8.75 in ALL68531
ALLSTAR PERFORMANCE
$139.99A worn or damaged differential bearing setup compromises both handling precision and driveline longevity—especially in a performance application. This Allstar Performance kit supplies everything needed for a complete, factory-spec rebuild of your Mopar...ALL68531- SKU:
- ALL68531
- Availability:
- Ships Same Business Day
- Weight:
- 6.53 LBS
- MFG Part #:
- ALL68531
$139.99
