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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Input Shaft Bearing SP0017
FRANKLAND RACING
$26.99A reliable input shaft bearing is critical to maintaining gear engagement and reducing drivetrain wear in quick-change differentials. The SP0017 is engineered to handle the radial and axial loads...FRKSP0017- SKU:
- FRKSP0017
- Availability:
- Ships Same Business Day
- Weight:
- 1.02 LBS
- MFG Part #:
- SP0017
$26.99Qty in Cart: 0Quantity:Price:$26.99Subtotal: -
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...FRKQC0432- SKU:
- FRKQC0432
- Availability:
- Ships Same Business Day
- Weight:
- 7.06 LBS
- MFG Part #:
- QC0432
$260.99Qty in Cart: 0Quantity:Price:$260.99Subtotal: -
Lower Shaft Hardened QC0405PH
FRANKLAND RACING
$127.99If you're running a quick-change rear end, the integrity of your lower shaft directly impacts both reliability under load and the consistency of your launches. The QC0405PH is engineered for...FRKQC0405PH- SKU:
- FRKQC0405PH
- Availability:
- Ships Same Business Day
- Weight:
- 5.58 LBS
- MFG Part #:
- QC0405PH
$127.99Qty in Cart: 0Quantity:Price:$127.99Subtotal: -
Yoke QC0380
FRANKLAND RACING
$66.99If you're running a quick-change rear end, the pinion yoke is the critical link between your driveshaft and differential—get it wrong, and you're looking at catastrophic failure on the track. The...FRKQC0380- SKU:
- FRKQC0380
- Availability:
- Ships Same Business Day
- Weight:
- 2.02 LBS
- MFG Part #:
- QC0380
$66.99 -
Thrust Block and Pin QC0310
FRANKLAND RACING
$15.49The Frankland Superlite Quick Change thrust block and pin assembly delivers the precision engagement and durability required for high-stress racing applications. Whether you're swapping rear ends...FRKQC0310- SKU:
- FRKQC0310
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- MFG Part #:
- QC0310
$15.49 -
Bearing Carrier QC0290
FRANKLAND RACING
$51.99A quality bearing carrier is essential for maintaining the structural integrity and rotational precision of your differential assembly under high-load racing conditions. The tapered roller bearing...FRKQC0290- SKU:
- FRKQC0290
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- QC0290
$51.99Qty in Cart: 0Quantity:Price:$51.99Subtotal: -
Bearing Carrier Race QC0280
FRANKLAND RACING
$25.99A quality axle bearing race is non-negotiable for reliable high-speed performance and longevity in demanding racing conditions. This steel bearing carrier race is engineered to work seamlessly with...FRKQC0280- SKU:
- FRKQC0280
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- MFG Part #:
- QC0280
$25.99Qty in Cart: 0Quantity:Price:$25.99Subtotal: -
Left Side Bell 6 Rib QC0254M
FRANKLAND RACING
$254.99If you're running a serious quick-change rear end, you need a bell housing that matches your setup's precision and durability. The Left Side Bell 6 Rib QC0254M is engineered for drivers who demand...FRKQC0254M- SKU:
- FRKQC0254M
- Availability:
- Ships Same Business Day
- Weight:
- 7.09 LBS
- MFG Part #:
- QC0254M
$254.99Qty in Cart: 0Quantity:Price:$254.99Subtotal: -
Rear Cover Bearing QC0090
FRANKLAND RACING
$16.99A worn rear cover bearing compromises gear integrity and can lead to catastrophic drivetrain failure. This precision ball bearing maintains critical clearances in your Frankland gear cover, ensuring...FRKQC0090- SKU:
- FRKQC0090
- Availability:
- Ships Same Business Day
- Weight:
- 0.48 LBS
- MFG Part #:
- QC0090
$16.99Qty in Cart: 0Quantity:Price:$16.99Subtotal: -
Rear Cover Superlight Coated KT0840MC
FRANKLAND RACING
$159.99The Rear Cover Superlight Coated KT0840MC reduces unsprung weight while maintaining structural integrity—critical for improving acceleration, handling response, and lap times. Its thermal dispersant...FRKKT0840MC- SKU:
- FRKKT0840MC
- Availability:
- Ships Same Business Day
- Weight:
- 3.10 LBS
- MFG Part #:
- KT0840MC
$159.99Qty in Cart: 0Quantity:Price:$159.99Subtotal: -
Superlite Rear Cover KT0840M
FRANKLAND RACING
$120.99If you're running a serious quick-change rear end setup, you need a gear cover that matches the precision of your drivetrain. The Superlite Rear Cover reduces rotational mass while maintaining the...FRKKT0840M- SKU:
- FRKKT0840M
- Availability:
- Ships Same Business Day
- Weight:
- 3.05 LBS
- MFG Part #:
- KT0840M
$120.99Qty in Cart: 0Quantity:Price:$120.99Subtotal: -
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...FRKKT0445- SKU:
- FRKKT0445
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- KT0445
$13.99Qty in Cart: 0Quantity:Price:$13.99Subtotal: -
Gleason Torsen Diff QC w/Bearings KT0100
FRANKLAND RACING
$1,669.99A quality limited-slip differential is fundamental to consistent lap times and predictable handling under load. The Gleason Torsen diff delivers torque-biasing performance without the maintenance...FRKKT0100- SKU:
- FRKKT0100
- Availability:
- Ships Same Business Day
- Weight:
- 27.48 LBS
- MFG Part #:
- KT0100
$1,669.99Qty in Cart: 0Quantity:Price:$1,669.99Subtotal: -
Ford Performance Roller Pilot Bearing 289 302 351C 351W 0.669 Input Shaft M-7600-A
FORD
$14.99A worn or failing pilot bearing compromises clutch engagement and accelerates wear on your transmission input shaft—a costly repair down the line. This OEM-spec roller pilot bearing restores smooth...FRDM7600-A- SKU:
- FRDM7600-A
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MFG Part #:
- M-7600-A
$14.99 -
Ford Performance Daytona-Style 9" Nodular Iron Pinion Bearing Retainer M-4614-B
FORD
$113.99If you're running a Ford 9-inch rear end under boost or in high-horsepower applications, pinion bearing support directly impacts both longevity and reliability. The Daytona-style design optimizes...FRDM4614-B- SKU:
- FRDM4614-B
- Availability:
- Ships Same Business Day
- Weight:
- 6.62 LBS
- MFG Part #:
- M-4614-B
$113.99 -
Aluminum SFI Flywheel - SBC 168 Tooth- Int. Bal. 198681
FIDANZA ENGINEERING
$482.99Lightweight flywheels are essential for reducing rotational mass and improving engine responsiveness—particularly critical in high-performance and racing applications where acceleration matters. This...FID198681- SKU:
- FID198681
- Availability:
- Ships Same Business Day
- Weight:
- 14.20 LBS
- MFG Part #:
- 198681
$482.99Qty in Cart: 0Quantity:Price:$482.99Subtotal: -
Aluminum SFI Flywheel - SBF 164 Tooth- External 186511
FIDANZA ENGINEERING
$482.99A quality flywheel is fundamental to engine performance and drivability—it directly affects how your engine stores rotational energy, transmits power to the transmission, and manages clutch...FID186511- SKU:
- FID186511
- Availability:
- Ships Same Business Day
- Weight:
- 15.77 LBS
- MFG Part #:
- 186511
$482.99Qty in Cart: 0Quantity:Price:$482.99Subtotal: -
DMI 2Tuff Hollow 31 Spline Axle - 30.5in RRC-2300-30.5
DIVERSIFIED MACHINE
$239.99The DMI 2Tuff Hollow 31 Spline Axle is engineered for racers and serious off-road enthusiasts who demand reliability under extreme torque loads. This gun-drilled hollow design reduces unsprung weight...DMIRRC-2300-30.5- SKU:
- DMIRRC-2300-30.5
- Availability:
- Ships Same Business Day
- Weight:
- 7.20 LBS
- MFG Part #:
- RRC-2300-30.5
$239.99 -
DMI CT1 Aluminum Spacer for Front Yoke RRC-1485
DIVERSIFIED MACHINE
$10.99Precision spacer engineering matters when you're building or maintaining a high-performance rear differential. The DMI CT1 Aluminum Spacer ensures proper pinion yoke alignment and eliminates unwanted...DMIRRC-1485- SKU:
- DMIRRC-1485
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- RRC-1485
$10.99 -
DMI CT1 Front Yoke RRC-1479
DIVERSIFIED MACHINE
$64.99If you're running a quick-change rear differential setup, your front yoke is the critical interface between your driveshaft and pinion—and it needs to be rock-solid. The DMI CT1 Front Yoke delivers...DMIRRC-1479- SKU:
- DMIRRC-1479
- Availability:
- Ships Same Business Day
- Weight:
- 1.93 LBS
- MFG Part #:
- RRC-1479
$64.99
