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!
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- Qty in Cart
- Quantity
- Price
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Winters Piston Clutch Apply Aluminum Natural Transmission 61844
WINTERS
$16.99If you're running a Winters transmission in a competition vehicle, the clutch apply piston is a critical component that directly impacts shift quality and clutch engagement consistency. This aluminum piston from Winters Performance Products is engineered...WIN61844- SKU:
- WIN61844
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
$16.99Qty in Cart: 0Quantity:Price:$16.99Subtotal: -
Winters Axle Tube 24in 2.5in GN Heavy Wall Steel 5052R/9151-150
WINTERS
$365.99Whether you're building a custom axle assembly from the ground up or replacing a worn housing tube, this Winters tube delivers the structural integrity and precision fitment that serious builds demand. The heavy-wall steel construction resists deflection...WIN5052R-24HW- SKU:
- WIN5052R-24HW
- Availability:
- Ships Same Business Day
- Weight:
- 29.79 LBS
$365.99Qty in Cart: 0Quantity:Price:$365.99Subtotal: -
Winters axle tube 22in 2.5in GN .156 wall thickness 5052R-22 w/8265-156
WINTERS
$265.99When you're building or rebuilding a high-performance axle assembly, the tube is your foundation—it has to handle lateral loads, torque, and the punishment of hard cornering without flex or failure. The Winters 5052R-22 delivers the structural integrity...WIN5052R-22-156- SKU:
- WIN5052R-22-156
- Availability:
- Ships Same Business Day
- Weight:
- 10.96 LBS
$265.99 -
Winters aluminum axle tube 1-ton Wide 5 30.188in OAL 3in OD straight black anodized 12313L-30.188
WINTERS
$302.99A straight axle tube is fundamental to maintaining precise wheel alignment and consistent suspension geometry under load. Winters' aluminum construction delivers weight savings without sacrificing structural integrity, while the black anodized finish...WIN12313L-30.188- SKU:
- WIN12313L-30.188
- Availability:
- Ships Same Business Day
- Weight:
- 7.62 LBS
$302.99Qty in Cart: 0Quantity:Price:$302.99Subtotal: -
Winters Axle Tube Wide 5 1 Ton 25.625in OAL 12313-25.625
WINTERS
$328.99If you're running a 1-ton Wide 5 setup, your axle tube needs to handle serious loads without compromise. The Winters Axle Tube delivers the structural integrity and precision fitment required for heavy-duty racing and off-road applications. This...WIN12313-25.625- SKU:
- WIN12313-25.625
- Availability:
- Ships Same Business Day
- Weight:
- 7.00 LBS
$328.99 -
Release Bearing Hyd GM / Ford Tremec Flat Face 60-6105
TILTON
$442.00A worn or failing throwout bearing will rob you of clutch response and introduce unpredictable engagement characteristics that compromise your launch and shift quality. This hydraulic release bearing is engineered for the demands of high-performance...TIL60-6105- SKU:
- TIL60-6105
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
$442.00 -
Spindle Snout 2in GN 5x5 Bolt-On 2 Deg 2857BB
TIGER QUICK CHANGE
$178.99A properly engineered spindle snout is critical for maintaining consistent camber angles under load, especially in competitive racing where suspension geometry directly impacts lap times and tire wear. This bolt-on rear axle snout delivers a fixed...TIG2857BB- SKU:
- TIG2857BB
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
$178.99 -
Strange Oval Axle 31-Spline 35.50in 1.200in OD AGY12003550
STRANGE OVAL
$320.99A quality axle shaft is the backbone of any reliable rear-end setup, and the Strange Oval Axle delivers the strength and precision your high-performance build demands. Whether you're running a dedicated drag racer, road course machine, or street-strip...SOTAGY12003550- SKU:
- SOTAGY12003550
- Availability:
- Ships Same Business Day
- Weight:
- 21.00 LBS
$320.99 -
Strange Oval Axle 31 Spline 36.00in 1.130in OD AGY11303600
STRANGE OVAL
$320.99Whether you're building a dedicated drag setup or upgrading a high-performance street machine, a quality axle shaft is non-negotiable for reliable power transfer. The Strange Oval Axle delivers the strength and precision required to handle serious boost...SOTAGY11303600- SKU:
- SOTAGY11303600
- Availability:
- Ships Same Business Day
- Weight:
- 8.70 LBS
$320.99 -
Strange Oval Axle 31 Spline 35.50in 1.130in OD AGY11303550
STRANGE OVAL
$320.99If you're running a high-horsepower build or upgrading your rear axle assembly, a precision-engineered axle shaft is critical to transferring power reliably without flex or failure under load. The Strange Oval Axle delivers the durability and strength...SOTAGY11303550- SKU:
- SOTAGY11303550
- Availability:
- Ships Same Business Day
- Weight:
- 8.50 LBS
$320.99 -
Strange Oval Axle 31-Spline 27.50in 1.080in OD AGY10802750
STRANGE OVAL
$320.99A properly engineered axle shaft is fundamental to consistent power delivery and reliability under load, whether you're running circle track, drag racing, or high-performance street applications. The Strange Oval Axle 31-Spline delivers the durability...SOTAGY10802750- SKU:
- SOTAGY10802750
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
$320.99 -
Strange Oval Axle 31 Spline 32.50in 1.115in OD Solid AGU11153250
STRANGE OVAL
$260.99The Strange Oval Axle 31 Spline delivers the durability and precision needed for high-stress racing applications where half-shafts are critical to power transfer and chassis reliability. Built to Strange's exacting standards, this gun-drilled solid axle...SOTAGU11153250- SKU:
- SOTAGU11153250
- Availability:
- Ships Same Business Day
- Weight:
- 10.01 LBS
$260.99 -
Strange Oval Axle 31-Spline 28.50in .940 OD Solid AGU09402850
STRANGE OVAL
$260.99If you're building or maintaining a high-performance rear axle assembly, shaft integrity is non-negotiable. Strange Engineering's oval axle delivers the strength and precision needed for sustained racing loads, with a 31-spline carrier interface that...SOTAGU09402850- SKU:
- SOTAGU09402850
- Availability:
- Ships Same Business Day
- Weight:
- 9.00 LBS
$260.99 -
Simpson Shift Boot Cover SFI 36012S
SIMPSON SAFETY
$101.95In a high-performance racing environment, heat and flame protection aren't optional—they're essential. The Simpson Shift Boot Cover SFI 36012S provides critical thermal and fire protection for your shifter area, using SFI-certified materials that meet...SIM36012S- SKU:
- SIM36012S
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$101.95 -
Differential Full Spool Ford 9in 31 Spline 81-0931-1
RICHMOND
$224.99A full spool eliminates wheel slip between your rear axles, delivering maximum traction and acceleration off the line—critical for drag racing, circle track, or any high-performance application where consistency matters. This Ford 9-inch spool is built...RIC81-0931-1- SKU:
- RIC81-0931-1
- Availability:
- Ships Same Business Day
- Weight:
- 8.70 LBS
$224.99 -
Differential Mini Spool GM 7.6in 28 Spline 78-7628-1
RICHMOND
$106.99A mini spool transforms your differential into a locked unit, delivering equal power to both wheels for maximum traction during hard acceleration and cornering. This steel construction is engineered to handle the demands of road racing and...RIC78-7628-1- SKU:
- RIC78-7628-1
- Availability:
- Ships Same Business Day
- Weight:
- 4.40 LBS
$106.99 -
Differential Mini Spool GM 7.5in 28 Spline 78-7528-1
RICHMOND
$112.99A mini spool is the definitive choice for consistent power delivery in tight racing applications where you need both wheels turning at the same speed without the complexity of a full locker. This steel spool eliminates wheel spin and unwanted rpm...RIC78-7528-1- SKU:
- RIC78-7528-1
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$112.99 -
Super T-10 Four Speed Trans. w/2.43 S Ratio 1304000070
RICHMOND
$2,989.99The Super T-10 Four Speed is the foundation of any serious street or strip machine that demands reliable, repeatable shifts and proven durability. Built around decades of real-world racing data, this transmission delivers the gear ratios and mechanical...RIC1304000070- SKU:
- RIC1304000070
- Availability:
- Ships Same Business Day
- Weight:
- 87.15 LBS
$2,989.99 -
Super T-10 Four Speed Trans. w/2.64 W Ratio 1304000069
RICHMOND
$2,989.99The Super T-10 Four Speed is the go-to manual transmission for builders prioritizing reliability and proven performance in high-output applications. With its legendary strength and compatibility across GM platforms, this transmission delivers consistent...RIC1304000069- SKU:
- RIC1304000069
- Availability:
- Ships Same Business Day
- Weight:
- 87.00 LBS
$2,989.99 -
GM 10.5 Lightweight Pressure Plate 1675L
RAM CLUTCH
$129.00If you're building a high-performance GM drivetrain, reducing rotating mass in your clutch assembly directly translates to faster engagement, quicker throttle response, and lower parasitic drag on your engine. The GM 10.5 Lightweight Pressure Plate 1675L...RAM1675L- SKU:
- RAM1675L
- Availability:
- Ships Same Business Day
- Weight:
- 17.80 LBS
$129.00
