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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6.20 Ratio 9in Ford AX F890620AX
MOTIVE GEAR
$484.99If you're running a Ford 9-inch rear end and need aggressive acceleration and torque multiplication, a 6.20 ratio ring and pinion is the direct path to faster 60-foot times and improved street performance. This AX Series kit delivers the low-end...MOTF890620AX- SKU:
- MOTF890620AX
- Availability:
- Ships Same Business Day
- Weight:
- 18.20 LBS
- MFG Part #:
- F890620AX
$484.99 -
6.14 Ratio 9in Ford AX F890614AX
MOTIVE GEAR
$484.99A 6.14 ratio ring and pinion set is essential for high-RPM racing applications where quick acceleration and responsive throttle control directly impact lap times. Whether you're running a street strip build or competitive road course, this AX Series kit...MOTF890614AX- SKU:
- MOTF890614AX
- Availability:
- Ships Same Business Day
- Weight:
- 18.45 LBS
- MFG Part #:
- F890614AX
$484.99 -
6.00 Ratio 9in Ford AX F890600AX
MOTIVE GEAR
$484.99If you're serious about extracting maximum power from your Ford 9-inch differential, a properly sized ring and pinion is non-negotiable. The 6.00 ratio in this AX series kit delivers the low-end torque multiplication your high-performance build demands,...MOTF890600AX- SKU:
- MOTF890600AX
- Availability:
- Ships Same Business Day
- Weight:
- 18.83 LBS
- MFG Part #:
- F890600AX
$484.99 -
6.00 Ratio 9in Ford F890600
MOTIVE GEAR
$369.99If you're serious about extracting maximum power from your Ford 9-inch differential, a 6.00 ratio ring and pinion is the direct path to improved acceleration and off-the-line performance. This kit delivers the mechanical advantage you need for street...MOTF890600- SKU:
- MOTF890600
- Availability:
- Ships Same Business Day
- Weight:
- 19.79 LBS
- MFG Part #:
- F890600
$369.99 -
5.83 Ratio 9in Ford F890583
MOTIVE GEAR
$369.99If you're serious about acceleration and off-the-line performance, a 5.83 ratio gear set transforms your Ford 9-inch differential into a responsive, gear-hungry machine. This aggressive ratio cuts engine RPM at cruise while delivering the quick spool-up...MOTF890583- SKU:
- MOTF890583
- Availability:
- Ships Same Business Day
- Weight:
- 19.54 LBS
- MFG Part #:
- F890583
$369.99 -
5.43 Ratio 9in Ford F890543
MOTIVE GEAR
$369.99If you're running a Ford 9-inch rear end and demand quicker acceleration off the line, the 5.43 Ratio Ring and Pinion Kit is engineered to deliver the gear multiplication you need. This performance-focused setup excels in street racing, bracket racing,...MOTF890543- SKU:
- MOTF890543
- Availability:
- Ships Same Business Day
- Weight:
- 19.37 LBS
- MFG Part #:
- F890543
$369.99 -
5.37 Ratio 9in Ford AX F890537AX
MOTIVE GEAR
$467.99If you're pushing your Ford 9-inch to its limits, your gear ratio directly determines how hard your engine works and when you hit peak power. The 5.37 ratio in this AX series kit delivers aggressive acceleration off the line while maintaining reasonable...MOTF890537AX- SKU:
- MOTF890537AX
- Availability:
- Ships Same Business Day
- Weight:
- 18.60 LBS
- MFG Part #:
- F890537AX
$467.99 -
5.29 Ratio 9in Ford AX F890529AX
MOTIVE GEAR
$454.99If you're running a 9-inch Ford rear end and need to dial in your final drive ratio for track performance or street duty, this 5.29 ring-and-pinion kit delivers the gearing precision that separates competitive lap times from the rest of the field. The AX...MOTF890529AX- SKU:
- MOTF890529AX
- Availability:
- Ships Same Business Day
- Weight:
- 17.95 LBS
- MFG Part #:
- F890529AX
$454.99Qty in Cart: 0Quantity:Price:$454.99Subtotal: -
5.14 Ratio 9in Ford F890514
MOTIVE GEAR
$369.99If you're running a Ford 9-inch rear and need aggressive acceleration off the line, a 5.14 ratio ring and pinion is your answer. This steep ratio dramatically reduces wheel slip during launches and maximizes torque multiplication for street or strip...MOTF890514- SKU:
- MOTF890514
- Availability:
- Ships Same Business Day
- Weight:
- 19.40 LBS
- MFG Part #:
- F890514
$369.99 -
3.00 Ratio 9in Ford RIng & Pinion F890300
MOTIVE GEAR
$369.99A 3.00 ratio delivers the perfect balance between highway cruising and consistent acceleration, making it the ideal choice for street-strip applications and daily-driven performance vehicles. This Ford 9-inch ring and pinion kit provides the direct...MOTF890300- SKU:
- MOTF890300
- Availability:
- Ships Same Business Day
- Weight:
- 18.97 LBS
- MFG Part #:
- F890300
$369.99 -
R-P 5.14 FORD 8.8 -5.14 F888514
MOTIVE GEAR
$387.99A 5.14 ring and pinion ratio transforms your Ford 8.8 differential into a launch-focused powerhouse, delivering aggressive acceleration and optimal gear multiplication for street or strip applications. Whether you're building a dedicated drag setup or...MOTF888514- SKU:
- MOTF888514
- Availability:
- Ships Same Business Day
- Weight:
- 17.90 LBS
- MFG Part #:
- F888514
$387.99 -
Moser Engineering 28 Spl 10 Blt Axle-EACH A102812-1
MOSER ENGINEERING
$170.00If you're running a classic GM A-Body with a 10-bolt rear end, a quality axle shaft is non-negotiable for reliable power delivery and longevity. This Moser Engineering 28-spline axle is engineered to handle sustained performance demands without...MEIA102812-1- SKU:
- MEIA102812-1
- Availability:
- Ships Same Business Day
- Weight:
- 16.90 LBS
- MFG Part #:
- A102812-1
$170.00 -
Moser Engineering C-Clip Axle Set GM 28spl 10 Bolt 30-1/16 Long A102803
MOSER ENGINEERING
$335.00If you're running a classic GM A-Body and demand reliability under hard acceleration or track conditions, a quality axle set is non-negotiable. Moser Engineering's C-Clip axle set is engineered to handle sustained power delivery without flex or...MEIA102803- SKU:
- MEIA102803
- Availability:
- Ships Same Business Day
- Weight:
- 32.15 LBS
- MFG Part #:
- A102803
$335.00 -
Moser Engineering GM 10 Bolt 7.5 C-Clip 26 Spline Axles 28-7/16in A102601
MOSER ENGINEERING
$335.00If you're rebuilding a classic G-Body or swapping a GM 10-bolt rear, these Moser Engineering axles deliver the strength and precision you need for reliable power transfer. Purpose-built for C-clip retention and 26-spline carriers, they're engineered to...MEIA102601- SKU:
- MEIA102601
- Availability:
- Ships Same Business Day
- Weight:
- 30.30 LBS
- MFG Part #:
- A102601
$335.00 -
Hyperco Rear End Locker Spring HYPLOCKERSPRG
HYPERCO
$41.00A reliable locker spring is critical for maintaining consistent differential locking performance under racing conditions and aggressive driving. Without proper spring tension, your locker mechanism loses responsiveness, leading to inconsistent traction...HYPLOCKERSPRG- SKU:
- HYPLOCKERSPRG
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MFG Part #:
- LOCKER SPRG(SPCL)
$41.00 -
Howe Drive Flange 5x5 Steel Hubs 205496
HOWE
$152.99A quality drive flange is essential for reliable hub assembly and proper wheel retention in high-stress racing applications. This Howe 5x5 steel hub delivers the durability and precision fit that professional racers and serious builders depend on, with a...HOW205496- SKU:
- HOW205496
- Availability:
- Ships Same Business Day
- Weight:
- 3.73 LBS
- MFG Part #:
- 205496
$152.99 -
Fast Shafts Ring & Pinion Ford 9in 5.57 F9-557
FAST SHAFTS
$231.99If you're running a Ford 9-inch rear end and need quicker acceleration or highway cruising capability, your ring and pinion ratio is the foundation of that performance. The 5.57 ratio in this Fast Shafts kit delivers the aggressive gearing serious racers...FSHF9-557- SKU:
- FSHF9-557
- Availability:
- Ships Same Business Day
- Weight:
- 20.05 LBS
- MFG Part #:
- F9-557
$231.99 -
Fast Shafts Ring & Pinion Ford 9in 5.50 F9-550
FAST SHAFTS
$231.99If you're running a 9-inch Ford rear end and need aggressive acceleration or highway cruising efficiency, your ring and pinion ratio is the most direct way to dial in your power delivery. The Fast Shafts 5.50 ratio delivers strong low-end grunt for...FSHF9-550- SKU:
- FSHF9-550
- Availability:
- Ships Same Business Day
- Weight:
- 19.80 LBS
- MFG Part #:
- F9-550
$231.99 -
Spool Aluminum QC0432
FRANKLAND RACING
$260.99If you're running a Frankland, Tiger, or Richmond quick change rear end, you need a spool that matches the demands of high-rpm racing. This aluminum spool delivers the direct power transfer and reliability required for consistent performance on the...FRKQC0432- SKU:
- FRKQC0432
- Availability:
- Ships Same Business Day
- Weight:
- 7.06 LBS
- MFG Part #:
- QC0432
$260.99Qty in Cart: 0Quantity:Price:$260.99Subtotal: -
Differential Shim Kit KT0445
FRANKLAND RACING
$13.99Proper differential shimming is critical for maintaining gear preload, reducing backlash, and extending the service life of your quick-change differential. Whether you're fine-tuning gear mesh or replacing worn components, this Frankland-compatible shim...FRKKT0445- SKU:
- FRKKT0445
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- KT0445
$13.99
