Drivetrain
Circle Track Drivetrain Parts: Transmissions, Clutches & Shifters for IMCA Racing at JJ Motorsports
Transfer power efficiently in your circle track racer with premium drivetrain components from JJ Motorsports. Our selection includes transmissions, clutches, shifters, differentials, bellhousings, and more, designed for superior performance, durability, and quick shifts in late models, modifieds, street stocks, and IMCA dirt racing. These high-quality parts ensure reliable power delivery and endurance under competitive track conditions.
Shop trusted brands like Winters Performance and Maxima Racing Oils. Explore related categories such as circle track chassis components for frame upgrades or circle track brakes for stopping power.
Top Circle Track Drivetrain Products
- Winters Falcon LM Transmission 2-Speed Manual Aluminum Case 18 Spline Input WIN60100 – High-performance 2-speed manual transmission for late model racing, with aluminum case, internal hydraulic clutch, IMCA approved for Stock Car, Modified, and Late Model classes; includes crankshaft coupler, 2.4:1 low gear, 1:1 high, reverse, 18 spline input, 27 spline output, 21-5/8" length, and 43 lbs weight.
- 2-Lever Floor Mount Shifter Assembly - Black Aluminum for IMCA UMP Racing – Durable shifter for IMCA and UMP racing, made from high-quality aluminum with black anodized finish; weighs 2 lbs, includes hardware for quick installation, and offers universal fit for efficient gear changes.
- Chevy Clutch Hydraulic Release Throwout Bearing Kit - Racing – Upgrades drivetrain with easy installation; includes hydraulic release bearing, CNC-machined housing, anti-rotation studs, adjusting lock nuts, AN Teflon-lined hose, and adapter fittings; compatible with Chevrolet, BOP, GMC manual transmissions and 5.5-7.25" racing clutches; features fail-safe design and lower pedal effort.
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 Spool Cross Pin GM 8.5 10 Bolt ALL68161
ALLSTAR PERFORMANCE
$29.99If you're running a GM 10-bolt differential and need absolute certainty in power delivery, a quality spool cross pin is non-negotiable. This Allstar Performance part ensures consistent gear...ALL68161- SKU:
- ALL68161
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- MFG Part #:
- ALL68161
$29.99 -
Allstar Performance Mini Spool 8.5 GM 10Bolt 28spl ALL68160
ALLSTAR PERFORMANCE
$99.99If you're serious about drag racing or circle track competition, a mini spool delivers the straight-line acceleration and cornering consistency that separates winners from the rest. By locking both...ALL68160- SKU:
- ALL68160
- Availability:
- Ships Same Business Day
- Weight:
- 6.15 LBS
- MFG Part #:
- ALL68160
$99.99 -
Allstar Performance Mini Spool 9in Ford 31sp LW ALL68122
ALLSTAR PERFORMANCE
$29.99If you're running a Ford 9-inch rear and need rock-solid, predictable power delivery to both wheels, a mini spool eliminates differential slip and gives you maximum traction off the line. This...ALL68122- SKU:
- ALL68122
- Availability:
- Ships Same Business Day
- Weight:
- 2.64 LBS
- MFG Part #:
- ALL68122
$29.99 -
Allstar Performance Mini Spool 9in Ford 28sp ALL68121
ALLSTAR PERFORMANCE
$29.99A mini spool transforms your Ford 9-inch differential into a locked unit, delivering consistent power to both rear wheels during acceleration and cornering. This is the setup serious racers and...ALL68121- SKU:
- ALL68121
- Availability:
- Ships Same Business Day
- Weight:
- 2.88 LBS
- MFG Part #:
- ALL68121
$29.99 -
Allstar Performance Spool Cross Pin Ford 8.8/9in ALL68120
ALLSTAR PERFORMANCE
$15.99A quality spool cross pin is essential for maintaining gear engagement and differential performance under high-stress racing conditions. When your factory pin shows wear or you're upgrading to a...ALL68120- SKU:
- ALL68120
- Availability:
- Ships Same Business Day
- Weight:
- 0.61 LBS
- MFG Part #:
- ALL68120
$15.99 -
Allstar Performance Spool QC 31spl Aluminum Frankland Tiger ALL68115
ALLSTAR PERFORMANCE
$314.99Quick-change rear ends demand a spool that can handle both precision and abuse—this Allstar Performance aluminum spool delivers uncompromising strength without the weight penalty. Built for serious...ALL68115- SKU:
- ALL68115
- Availability:
- Ships Same Business Day
- Weight:
- 6.83 LBS
- MFG Part #:
- ALL68115
$314.99 -
Allstar Performance Spool QC 31spl Aluminum Winters DMI ALL68114
ALLSTAR PERFORMANCE
$289.99If you're running a quick-change rear end, you need a spool that delivers consistent power distribution without compromise. The Allstar Performance Spool QC locks both wheels together for maximum...ALL68114- SKU:
- ALL68114
- Availability:
- Ships Same Business Day
- Weight:
- 6.05 LBS
- MFG Part #:
- ALL68114
$289.99 -
Allstar Performance Spool 9in Ford 40 Spline 3.250in Case ALL68074
ALLSTAR PERFORMANCE
$199.99If you're running a 9-inch Ford rear axle in a high-performance application, a quality spool is essential for consistent traction and predictable power delivery. The Allstar Performance Spool...ALL68074- SKU:
- ALL68074
- Availability:
- Ships Same Business Day
- Weight:
- 7.81 LBS
- MFG Part #:
- ALL68074
$199.99 -
Allstar Performance Spool 9in Ford 35 Spline 2.893-3.062 Case ALL68072
ALLSTAR PERFORMANCE
$199.99If you're running a Ford 9-inch differential, switching from a traditional carrier to a spool is one of the most direct ways to maximize traction and eliminate wheel hop during acceleration. The...ALL68072- SKU:
- ALL68072
- Availability:
- Ships Same Business Day
- Weight:
- 8.52 LBS
- MFG Part #:
- ALL68072
$199.99 -
Allstar Performance Spool 9in Ford 35 Spline 3.250in Case ALL68070
ALLSTAR PERFORMANCE
$184.99If you're running a Ford 9-inch rear end and want equal power delivery to both wheels without the binding and tire-scrubbing issues of a locker, a spool is your most direct solution. The Allstar...ALL68070- SKU:
- ALL68070
- Availability:
- Ships Same Business Day
- Weight:
- 9.00 LBS
- MFG Part #:
- ALL68070
$184.99 -
Allstar Performance Spool 9in Ford 31 Spline Ultralite Scalloped ALL68067
ALLSTAR PERFORMANCE
$199.99If you're running a Ford 9-inch rear end and need absolute reliability under extreme load, this Allstar Performance spool eliminates wheel spin and delivers consistent power delivery to both rear...ALL68067- SKU:
- ALL68067
- Availability:
- Ships Same Business Day
- Weight:
- 6.50 LBS
- MFG Part #:
- ALL68067
$199.99 -
Allstar Performance Spool 9in Ford 31 Spline Ultralite ALL68066
ALLSTAR PERFORMANCE
$159.99A spool eliminates differential action entirely, delivering maximum traction by locking both rear wheels together—essential for drag racing, oval track competition, and high-grip applications where...ALL68066- SKU:
- ALL68066
- Availability:
- Ships Same Business Day
- Weight:
- 6.40 LBS
- MFG Part #:
- ALL68066
$159.99 -
Allstar Performance Spool 9in Ford 28 Spline Ultralite ALL68062
ALLSTAR PERFORMANCE
$149.99Eliminate wheel spin and maximize traction off the line with the Allstar Performance Spool 9in Ford 28 Spline Ultralite. This full-spool design locks both rear wheels together for absolute power...ALL68062- SKU:
- ALL68062
- Availability:
- Ships Same Business Day
- Weight:
- 6.64 LBS
- MFG Part #:
- ALL68062
$149.99 -
Allstar Performance Spool 9in Ford 28 Spline ALL68060
ALLSTAR PERFORMANCE
$159.99A spool eliminates differential action entirely, locking both rear wheels together for maximum traction during hard acceleration and cornering. This is essential for dedicated track cars, drag racing...ALL68060- SKU:
- ALL68060
- Availability:
- Ships Same Business Day
- Weight:
- 9.57 LBS
- MFG Part #:
- ALL68060
$159.99 -
Allstar Performance Ford 9in Axle 31 Spline W/Bearing 33in ALL67503
ALLSTAR PERFORMANCE
$249.99If you're running a Ford 9-inch rear end and need a reliable, ready-to-install axle shaft, the Allstar Performance 31-spline unit eliminates guesswork with proper fitment and included bearing support...ALL67503- SKU:
- ALL67503
- Availability:
- Ships Same Business Day
- Weight:
- 22.50 LBS
- MFG Part #:
- ALL67503
$249.99 -
Allstar Performance Ford 9in Axle 31 Spline 33in ALL67502
ALLSTAR PERFORMANCE
$219.99If you're building a Ford 9-inch rear end, you need an axle shaft engineered for your specific application—not a generic compromise. The Allstar Performance Ford 9in Axle delivers the exact spline...ALL67502- SKU:
- ALL67502
- Availability:
- Ships Same Business Day
- Weight:
- 20.60 LBS
- MFG Part #:
- ALL67502
$219.99 -
Allstar Performance Ford 9in Axle 31 Spline W/Bearing 29-1/2in ALL67501
ALLSTAR PERFORMANCE
$249.99If you're building or rebuilding a Ford 9-inch rear end for street or strip duty, a quality axle shaft is non-negotiable—it's your direct link between power delivery and tire grip. The Allstar...ALL67501- SKU:
- ALL67501
- Availability:
- Ships Same Business Day
- Weight:
- 21.10 LBS
- MFG Part #:
- ALL67501
$249.99Qty in Cart: 0Quantity:Price:$249.99Subtotal: -
Allstar Performance Ford 9in Axle 31 Spline 29-1/2in ALL67500
ALLSTAR PERFORMANCE
$219.99A quality axle shaft is the backbone of any reliable rear-end setup, especially in high-performance and racing applications where durability under load is non-negotiable. This Allstar Performance...ALL67500- SKU:
- ALL67500
- Availability:
- Ships Same Business Day
- Weight:
- 19.25 LBS
- MFG Part #:
- ALL67500
$219.99 -
Allstar Performance Axle 28 Spl 30.0 Solid ALL67301
ALLSTAR PERFORMANCE
$149.99A quality axle shaft is the backbone of reliable power delivery to your wheels—especially under high-load racing conditions where flex and failure aren't options. The Allstar Performance 28 Spline 30...ALL67301- SKU:
- ALL67301
- Availability:
- Ships Same Business Day
- Weight:
- 9.44 LBS
- MFG Part #:
- ALL67301
$149.99 -
Allstar Performance Axle 31 Spl 37.5 Solid ALL66376
ALLSTAR PERFORMANCE
$149.99A solid axle shaft is fundamental to any reliable rear-end assembly, and this Allstar Performance unit delivers the durability and precision you need for consistent power delivery. Whether you're...ALL66376- SKU:
- ALL66376
- Availability:
- Ships Same Business Day
- Weight:
- 12.61 LBS
- MFG Part #:
- ALL66376
$149.99
