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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Brinn Shifter Assm. Internal Predator Transmission 72622
BRINN TRANSMISSION
$212.99If you're running a Brinn Predator transmission, your shifter assembly is the critical link between driver input and gear engagement—and it needs to be as precise as your transmission itself. This...BRI72622- SKU:
- BRI72622
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$212.99 -
Brinn Rebuild Kit Predator Transmission 70641
BRINN TRANSMISSION
$196.99The Brinn Rebuild Kit Predator Transmission 70641 is essential maintenance for keeping your Predator transmission operating at peak efficiency and reliability. Over time, bushings wear and seals...BRI70641- SKU:
- BRI70641
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$196.99 -
Bert Extension Bushing SG-1356
BERT TRANSMISSIONS
$42.99The Bert Extension Bushing is a critical wear component that maintains precise tailshaft alignment in your Bert late-model transmission, preventing excessive play and drivetrain noise under load...BERSG-1356- SKU:
- BERSG-1356
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
$42.99 -
Bert Output Bushing SG-1300 & SG-1400 SG-1304
BERT TRANSMISSIONS
$20.99The output bushing is a critical wear component in any Bert transmission—when it deteriorates, you'll experience increased play in your driveline, potential shaft wobble, and premature failure of...BERSG-1304- SKU:
- BERSG-1304
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$20.99 -
Bert Tail Housing Tube Late Model SG-1303
BERT TRANSMISSIONS
$88.99A quality tail housing tube is critical to maintaining drivetrain integrity under high-load racing conditions. The Bert SG-1303 delivers precise fitment and reliable performance for late-model Bert...BERSG-1303- SKU:
- BERSG-1303
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$88.99 -
Bert Output Shaft SG-1300 SG-1302
BERT TRANSMISSIONS
$534.99A quality output shaft is critical to reliable power transfer in your Bert transmission—any wear or damage here compromises your entire drivetrain. The Bert SG-1300/SG-1302 Output Shaft is engineered...BERSG-1302- SKU:
- BERSG-1302
- Availability:
- Ships Same Business Day
- Weight:
- 3.35 LBS
$534.99 -
Bert Spring 5/16 SG-1158
BERT TRANSMISSIONS
$1.99Transmission detent springs are critical wear items that directly impact shift quality and clutch engagement in high-performance applications. A worn or weakened detent spring results in sloppy...BERSG-1158- SKU:
- BERSG-1158
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
$1.99 -
Bert Gear selector SG-1101
BERT TRANSMISSIONS
$286.99If you're running a Bert transmission in a high-output application, the quality of your gear selector directly impacts shift reliability and power delivery consistency. The SG-1101 is engineered...BERSG-1101- SKU:
- BERSG-1101
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
$286.99 -
Bert Plunger SG-1035-02
BERT TRANSMISSIONS
$18.49A worn or damaged transmission plunger compromises shift quality and accelerates wear on synchronizers and gear dogs. The Bert Plunger SG-1035-02 restores precise engagement and consistent shift...BERSG-1035-02- SKU:
- BERSG-1035-02
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
$18.49 -
Bert Drive Flange Steel LS1 Chevy 7-LS1
BERT TRANSMISSIONS
$124.99If you're running a high-performance LS1 and demand absolute reliability during aggressive driving, the Bert Drive Flange Steel is your foundation for power transfer. This crankshaft coupler delivers...BER7-LS1- SKU:
- BER7-LS1
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
$124.99 -
Bert Flywheel Ring Gear SBC Offset .080 370-NYM
BERT TRANSMISSIONS
$95.99A reliable ring gear is fundamental to consistent starter engagement and smooth flywheel operation—especially in high-performance applications where repeated heat cycles and aggressive launches...BER370-NYM- SKU:
- BER370-NYM
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$95.99 -
Allstar Performance 9in Floater Bare Housing 2.5in GN Snouts 62in Ctr ALL68824
ALLSTAR PERFORMANCE
$499.99A solid 9-inch floater rear housing is the foundation of any serious drag racing or high-performance street build. This Allstar Performance unit gives you the flexibility to run your preferred axle...ALL68824- SKU:
- ALL68824
- Availability:
- Ships Same Business Day
- Weight:
- 53.00 LBS
$499.99 -
Allstar Performance 9in Floater Bare Housing 2.5in GN Snouts 58in Ctr ALL68820
ALLSTAR PERFORMANCE
$499.99A solid 9-inch floater housing is the foundation of any serious rear-end setup, and this Allstar Performance unit delivers the strength and precision you need for consistent performance on the track...ALL68820- SKU:
- ALL68820
- Availability:
- Ships Same Business Day
- Weight:
- 50.00 LBS
$499.99 -
Allstar Performance 9in Floater Bare Housing 63in w/2in Offset ALL68708
ALLSTAR PERFORMANCE
$499.99A solid rear axle housing is the foundation of any high-performance rear end assembly, and the Allstar Performance 9-inch floater delivers the strength and precision you need for sustained track use...ALL68708- SKU:
- ALL68708
- Availability:
- Ships Same Business Day
- Weight:
- 50.45 LBS
$499.99 -
Allstar Performance 9in Floater Bare Housing 60in Centered ALL68700
ALLSTAR PERFORMANCE
$499.99A quality rear axle housing is the foundation of any serious 9-inch setup, and the Allstar Performance floater design delivers the strength and geometry you need for consistent performance under load...ALL68700- SKU:
- ALL68700
- Availability:
- Ships Same Business Day
- Weight:
- 48.85 LBS
$499.99 -
Allstar Performance Yoke QC 10spl Cast Steel 1310 U-Joint +1in ALL68386
ALLSTAR PERFORMANCE
$92.99If you're running a quick-change rear end, this Allstar Performance yoke is engineered to handle the demands of high-performance racing and frequent drivetrain changes. The extra-long design...ALL68386- SKU:
- ALL68386
- Availability:
- Ships Same Business Day
- Weight:
- 2.79 LBS
$92.99 -
Allstar Performance Yoke Ford 9 28spl Cast Steel 1330 U-Joint +1in ALL68377
ALLSTAR PERFORMANCE
$83.99A solid pinion yoke is the unsung foundation of reliable driveline performance—without it, you're compromising power transfer and risking catastrophic failure under load. The Allstar Performance Ford...ALL68377- SKU:
- ALL68377
- Availability:
- Ships Same Business Day
- Weight:
- 4.05 LBS
$83.99 -
Allstar Performance Yoke Ford 9 28spl Cast Steel 1330 U-Joint ALL68376
ALLSTAR PERFORMANCE
$79.99A solid pinion yoke is the foundation of reliable power transfer in any Ford 9-inch differential setup. This Allstar Performance yoke combines cast steel durability with precision 28-spline...ALL68376- SKU:
- ALL68376
- Availability:
- Ships Same Business Day
- Weight:
- 3.09 LBS
$79.99 -
Allstar Performance Yoke Ford 9 28spl Cast Steel 1310 U-Joint ALL68375
ALLSTAR PERFORMANCE
$82.99The Allstar Performance pinion yoke is engineered for direct bolt-on compatibility with Ford 9-inch differentials, delivering the reliable power transfer your driveline demands. Built from cast steel...ALL68375- SKU:
- ALL68375
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
$82.99 -
Allstar Performance Quickchange Jack Post Aluminum ALL68347
ALLSTAR PERFORMANCE
$23.99Fast pit stops demand equipment that keeps pace with your crew. The Allstar Performance Quickchange Jack Post delivers the reliability and speed necessary for seamless rear-end changes without...ALL68347- SKU:
- ALL68347
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$23.99
