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
-
Strange Oval Steel Drive Flange Wide 5 8 Bolt Articulating ADW820
STRANGE OVAL
$279.99If you're running a high-performance drivetrain with Wide 5 axle flanges, you need a drive flange that matches the precision of your setup—this Strange oval steel flange delivers the strength and reliability required for serious racing applications. The...SOTADW820- SKU:
- SOTADW820
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MFG Part #:
- ADW820
$279.99 -
Strange Oval Alum Drive Flange Wide 5 8 Bolt w/Steel Spl Insrt ADW800
STRANGE OVAL
$125.99The Strange Oval aluminum drive flange is engineered for serious racers and high-performance builds that demand reliability under extreme load conditions. Its robust 8-bolt wide 5 configuration, combined with a reinforced steel spline insert, delivers...SOTADW800- SKU:
- SOTADW800
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- MFG Part #:
- ADW800
$125.99 -
Strange Oval Drive Flange Alum. 2.5in GN 5x5 & 5x4.75 ADW570
STRANGE OVAL
$150.99If you're running a Grand National hub setup with mixed wheel bolt patterns, you need a drive flange that won't compromise your axle's integrity or wheel fitment. The Strange Oval Drive Flange delivers the precision engineering required for forced...SOTADW570- SKU:
- SOTADW570
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- MFG Part #:
- ADW570
$150.99 -
Strange Oval Drive Flange Cambered 5x5 Howe / PCR ADW530
STRANGE OVAL
$327.99A properly cambered drive flange is essential for maximizing tire contact and maintaining consistent brake performance under high-load racing conditions. The Strange Oval Drive Flange delivers precision engineering with black anodized aluminum...SOTADW530- SKU:
- SOTADW530
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MFG Part #:
- ADW530
$327.99 -
Strange Oval Steel Drive Flange Wide 5 5 Bolt Articulating ADW520
STRANGE OVAL
$279.99The Strange Oval Steel Drive Flange (ADW520) is essential for drag racing and high-performance applications where reliable axle engagement is non-negotiable. This 5-bolt Wide 5 flange delivers consistent power delivery and eliminates flex under extreme...SOTADW520- SKU:
- SOTADW520
- Availability:
- Ships Same Business Day
- Weight:
- 1.89 LBS
- MFG Part #:
- ADW520
$279.99 -
GM 8.5 10 Bolt Car Mega Installation Kit 83-1021-M
RICHMOND
$198.99A differential rebuild demands precision—misaligned bearings, improper crush sleeve installation, or missing seals can quickly turn a fresh build into catastrophic failure. This comprehensive installation kit eliminates guesswork by bundling every...RIC83-1021-M- SKU:
- RIC83-1021-M
- Availability:
- Ships Same Business Day
- Weight:
- 7.13 LBS
- MFG Part #:
- 83-1021-M
$198.99 -
6.20 Ratio 9in Ford 69-0290-1
RICHMOND
$465.99A 6.20 ratio ring and pinion transforms your Ford 9-inch differential into a high-revving powerhouse, delivering quicker acceleration and sharper throttle response ideal for drag racing, road course competition, or street performance builds. This...RIC69-0290-1- SKU:
- RIC69-0290-1
- Availability:
- Ships Same Business Day
- Weight:
- 19.36 LBS
- MFG Part #:
- 69-0290-1
$465.99 -
5.83 Ratio 9in Ford 69-0288-1
RICHMOND
$380.99If you're running a Ford 9-inch rear and need quicker acceleration off the line or better track responsiveness, a 5.83 ratio ring and pinion kit is the direct path to getting there. This ratio sits in the sweet spot for street-strip builds and...RIC69-0288-1- SKU:
- RIC69-0288-1
- Availability:
- Ships Same Business Day
- Weight:
- 19.31 LBS
- MFG Part #:
- 69-0288-1
$380.99 -
6.33 Ratio 9in Ford 69-0276-1
RICHMOND
$348.99A 6.33 gear ratio delivers quicker acceleration and stronger low-end torque response, making it ideal for drag racing, road course competition, or street applications where aggressive launch characteristics matter. This Ford 9-inch ring and pinion kit...RIC69-0276-1- SKU:
- RIC69-0276-1
- Availability:
- Ships Same Business Day
- Weight:
- 21.43 LBS
- MFG Part #:
- 69-0276-1
$348.99Qty in Cart: 0Quantity:Price:$348.99Subtotal: -
5.43 Ratio 9in Ford 69-0069-1
RICHMOND
$300.99A 5.43 ratio ring and pinion transforms your Ford 9-inch differential into a serious acceleration machine, delivering quicker spool-up and explosive off-the-line performance for street and strip applications. Whether you're chasing ET records or...RIC69-0069-1- SKU:
- RIC69-0069-1
- Availability:
- Ships Same Business Day
- Weight:
- 19.17 LBS
- MFG Part #:
- 69-0069-1
$300.99 -
5.14 Ratio 9in Ford 69-0068-1
RICHMOND
$465.99A 5.14 ratio ring and pinion setup transforms your Ford 9-inch differential into a torque-multiplying powerhouse, delivering aggressive acceleration and superior launch characteristics for competition and high-performance street applications. Whether...RIC69-0068-1- SKU:
- RIC69-0068-1
- Availability:
- Ships Same Business Day
- Weight:
- 20.60 LBS
- MFG Part #:
- 69-0068-1
$465.99 -
4.86 Ratio 9in Ford 69-0067-1
RICHMOND
$465.99A 4.86 ratio ring and pinion transforms your Ford 9-inch differential into a track-focused powerhouse, delivering aggressive acceleration and superior torque multiplication for competition and high-performance driving. Whether you're launching hard off...RIC69-0067-1- SKU:
- RIC69-0067-1
- Availability:
- Ships Same Business Day
- Weight:
- 20.64 LBS
- MFG Part #:
- 69-0067-1
$465.99 -
Excel Ring & Pinion Gear Set GM 12 Bolt 3.42 12BC342
RICHMOND
$220.99A 3.42 ring and pinion ratio delivers the acceleration you need for street performance and moderate track use without sacrificing highway cruising ability. This Excel gear set is engineered for the GM 12-bolt platform with precision-cut teeth and proper...RIC12BC342- SKU:
- RIC12BC342
- Availability:
- Ships Same Business Day
- Weight:
- 16.00 LBS
- MFG Part #:
- 12BC342
$220.99 -
Axle Bearing 9in Ford 1.378 x 2.834 9103
RATECH
$17.99A worn or damaged axle bearing will compromise your 9-inch Ford rear end's structural integrity and introduce play that kills handling precision and accelerates component wear. Upgrading to a quality bearing like this 1.378 x 2.834 unit ensures...RAT9103- SKU:
- RAT9103
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 9103
$17.99 -
Complete Kit GM 8.5in w/ Eaton / Auburn Posi 366K
RATECH
$129.99A differential rebuild requires precision components and proper assembly—this complete kit eliminates guesswork by including every bearing, seal, and shim needed for a bulletproof installation. Whether you're refreshing a tired 8.5-inch GM axle or...RAT366K- SKU:
- RAT366K
- Availability:
- Ships Same Business Day
- Weight:
- 5.75 LBS
- MFG Part #:
- 366K
$129.99 -
Crush Sleeve GM 8.5in 3109
RATECH
$4.79A properly functioning crush sleeve is critical to maintaining correct pinion bearing preload in your differential—without it, you risk premature bearing wear, gear noise, and catastrophic drivetrain failure. This OEM-spec GM crush sleeve ensures your 8...RAT3109- SKU:
- RAT3109
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- 3109
$4.79 -
Bearing Kit Ford 9in 216B
RATECH
$86.99A worn or failing differential bearing kit compromises the precision and reliability of your Ford 9-inch rear end, leading to excessive play, noise, and potential catastrophic failure under load. This complete bearing kit restores proper carrier and...RAT216B- SKU:
- RAT216B
- Availability:
- Ships Same Business Day
- Weight:
- 3.72 LBS
- MFG Part #:
- 216B
$86.99 -
Smart Sleeve GM 12 Bolt 11005
RATECH
$32.99Tired of the guesswork that comes with traditional crush sleeves? The Smart Sleeve GM 12 Bolt (MPN: 11005) takes the frustration out of pinion preload setup, giving you precise, repeatable results every time. Whether you're building a weekend warrior or...RAT11005- SKU:
- RAT11005
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- MFG Part #:
- 11005
$32.99 -
Smart Sleeve GM 8.2in 11003
RATECH
$12.99A worn or damaged crush sleeve compromises differential bearing preload, leading to excessive play, noise, and accelerated wear on your ring and pinion gears. The Smart Sleeve GM 8.2in delivers precise bearing preload management in GM 10-bolt...RAT11003- SKU:
- RAT11003
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 11003
$12.99 -
Smart Sleeve GM 8.5in 11002
RATECH
$12.49A worn or damaged crush sleeve compromises differential preload and can lead to excessive play in your rear axle assembly, degrading handling precision and accelerating bearing wear. The Smart Sleeve GM 8.5in is a critical service component that restores...RAT11002- SKU:
- RAT11002
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MFG Part #:
- 11002
$12.49Qty in Cart: 0Quantity:Price:$12.49Subtotal:
