Differentials and Differential Carriers
Circle Track Differentials & Differential Carriers at JJ Motorsports
Enhance traction and power delivery in your circle track racer with high-performance differentials and carriers from JJ Motorsports. Designed for reliable torque distribution and durability under extreme racing loads, these lockers and Torsen diffs are ideal for IMCA, USMTS, late models, modifieds, and street stocks, ensuring consistent performance on dirt ovals with options for quick change and Ford 9in setups.
Shop trusted brands like Winters for billet aluminum lockers, Frankland for Gleason Torsen diffs, and Detroit Locker for robust iron carriers. Explore related categories such as Circle Track Differentials and Rear End Components for complete rear end solutions or Circle Track Ring and Pinion Gears for gear upgrades.
Top Circle Track Differentials & Differential Carriers
- Winters Billet Aluminum Locker 2.33 in Side Gear Spline Quick Change WIN5114-01 – High-performance differential carrier for quick change rear end setups, made from billet aluminum for strength and durability, ideal for racing.
- Gleason Torsen Diff QC w/Bearings KT0100 – Differential carrier with Gleason Torsen, 31 spline, includes bearings and shims, iron construction for Frankland / Winters Quick Change.
- Detroit Locker - Ford 9in 31-Spline Center R18703A – Differential carrier for circle track, Detroit Locker, 31 spline, iron construction for Ford 9 in.
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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Winters Billet Aluminum Locker 2.33 in Side Gear Spline Quick Change WIN5114-01
WINTERS
$757.99The Winters Billet Aluminum Locker is a high-performance differential carrier designed for quick change rear end setups. Constructed from billet aluminum, it offers exceptional strength and durability, making it ideal for racing applications. This locker...WIN5114-01- SKU:
- WIN5114-01
- Availability:
- Ships Same Business Day
- Weight:
- 13.44 LBS
- MFG Part #:
- 5114-01
$757.99 -
Gleason Torsen Diff QC w/Bearings KT0100
FRANKLAND RACING
$1,589.99Gleason Torsen Diff QC w/BearingsDifferential CarrierGleason Torsen31 SplineBearings / ShimsIronFrankland / Winters Quick ChangeEachFRKKT0100- SKU:
- FRKKT0100
- Availability:
- Ships Same Business Day
- Weight:
- 27.48 LBS
- MFG Part #:
- KT0100
$1,589.99 -
Detroit Locker - Ford 9in 31-Spline Center R18703A
DETROIT LOCKER-TRACTECH
$964.99Detroit Locker - Ford 9in 31-Spline CenterDifferential CarrierCircle Track Detroit Locker31 SplineIronFord 9 inEachDETR18703A- SKU:
- DETR18703A
- Availability:
- Ships Same Business Day
- Weight:
- 16.20 LBS
- MFG Part #:
- R18703A
$964.99 -
Detroit Truetrac - Ford 8in 28-Spline 912A616
DETROIT LOCKER-TRACTECH
$790.99Detroit Truetrac - Ford 8in 28-SplineDifferential CarrierDetroit Truetrac28 SplineIronFord 8 inEachDET912A616- SKU:
- DET912A616
- Availability:
- Ships Same Business Day
- Weight:
- 16.60 LBS
- MFG Part #:
- 912A616
$790.99 -
Detroit Truetrac - Ford 9in 28-Spline 912A587
DETROIT LOCKER-TRACTECH
$665.99Detroit Truetrac - Ford 9in 28-SplineDifferential CarrierDetroit Truetrac28 Spline3.25 Ratio and UpIronFord 9 inEachDET912A587- SKU:
- DET912A587
- Availability:
- Ships Same Business Day
- Weight:
- 16.46 LBS
- MFG Part #:
- 912A587
$665.99Qty in Cart: 0Quantity:Price:$665.99Subtotal: -
Detroit Truetrac - GM 7.625 10-Bolt 912A317
DETROIT LOCKER-TRACTECH
$623.99Detroit Truetrac - GM 7.625 10-BoltDifferential CarrierDetroit Truetrac28 Spline3.23 Ratio and UpIron7.5 / 7.6 inGM 10-BoltEachDET912A317- SKU:
- DET912A317
- Availability:
- Ships Same Business Day
- Weight:
- 20.57 LBS
- MFG Part #:
- 912A317
$623.99 -
Detroit Truetrac - GM 7.5 26-Spline 911A415
DETROIT LOCKER-TRACTECH
$639.99Detroit Truetrac - GM 7.5 26-SplineDifferential CarrierDetroit Truetrac26 Spline3.08 Ratio and LowerIron7.5 inGM 10-BoltEachDET911A415- SKU:
- DET911A415
- Availability:
- Ships Same Business Day
- Weight:
- 20.88 LBS
- MFG Part #:
- 911A415
$639.99 -
Detroit Truetrac - GM 7.5 26-Spline 911A319
DETROIT LOCKER-TRACTECH
$634.99Detroit Truetrac - GM 7.5 26-SplineDifferential CarrierDetroit Truetrac26 Spline3.23 Ratio and UpIron7.5 inGM 10-BoltEachDET911A319- SKU:
- DET911A319
- Availability:
- Ships Same Business Day
- Weight:
- 20.69 LBS
- MFG Part #:
- 911A319
$634.99 -
Eaton Posi - GM 7.5 10-Bolt 26-Spline 19663-010
DETROIT LOCKER-TRACTECH
$696.99Eaton Posi - GM 7.5 10-Bolt 26-SplineDifferential CarrierEaton Posi26 Spline3.23 Ratio and UpIron7.5 inGM 10-BoltEachDET19663-010- SKU:
- DET19663-010
- Availability:
- Ships Same Business Day
- Weight:
- 17.13 LBS
- MFG Part #:
- 19663-010
$696.99 -
Eaton Posi - GM 10-Bolt 64-82 8.2in 19603-010
DETROIT LOCKER-TRACTECH
$750.99Eaton Posi - GM 10-Bolt 64-82 8.2inDifferential CarrierEaton Posi28 Spline3.08 Ratio and UpIron8.2 inGM 10-BoltEachDET19603-010- SKU:
- DET19603-010
- Availability:
- Ships Same Business Day
- Weight:
- 20.25 LBS
- MFG Part #:
- 19603-010
$750.99 -
Winters Differential Carrier 2nd Gen TrackStar Aluminum End Cap Steel 10 in Quick Change WIN3224-01
WINTERS
$1,940.99The Winters Differential TrackStar 2nd Generation is a high-performance differential carrier designed for racing applications. It features a durable steel construction with an aluminum end cap, ensuring strength and lightweight performance. Compatible...WIN3224-01- SKU:
- WIN3224-01
- Availability:
- Ships Same Business Day
- Weight:
- 24.10 LBS
- MFG Part #:
- 3224-01
$1,940.99Qty in Cart: 0Quantity:Price:$1,940.99Subtotal:
