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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On Sale
Wehrs Shifter Two Lever WEHWM84
WEHRS MACHINE
MSRP: $80.99Now: $79.00Was: $80.99A quality shifter is fundamental to consistent gear engagement and driver control—especially in high-performance and racing applications where split-second shifts matter. The Wehrs Two Lever Shifter delivers reliable, positive actuation with a...WEHWM84- SKU:
- WEHWM84
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- MFG Part #:
- WM84
MSRP: $80.99Now: $79.00Was: $80.99 -
Strange Oval Alum Drive Flange Wide 5 5 Bolt w/Steel Spl Insrt ADW500
STRANGE OVAL
$125.99The Strange Oval ADW500 drive flange is engineered for drag racing and high-horsepower applications where reliability under extreme load is non-negotiable. This 5-bolt Wide 5 flange delivers the strength and precision fit required for consistent power...SOTADW500- SKU:
- SOTADW500
- Availability:
- Ships Same Business Day
- Weight:
- 1.17 LBS
- MFG Part #:
- ADW500
$125.99 -
Chromoly Flexplate - SFI SBC 168T - Int. Balance 1835001
PRW INDUSTRIES, INC.
$90.77If you're running a high-RPM small block Chevy or V6 engine with an automatic transmission, a quality flexplate is critical to reliability under load. This chromoly construction handles the demands of forced induction and sustained power delivery without...PQX1835001- SKU:
- PQX1835001
- Availability:
- Ships Same Business Day
- Weight:
- 7.19 LBS
- MFG Part #:
- 1835001
$90.77 -
PEM 9in Floater Bare Housing 60in Centered 2.5in GN HN300300
PEM
$538.99A solid 9-inch floater center section is the backbone of any serious drag racing or high-performance street setup. This PEM housing delivers the strength and geometry you need to handle extreme torque loads while maintaining consistent gear spacing and...PEMHN300300- SKU:
- PEMHN300300
- Availability:
- Ships Same Business Day
- Weight:
- 53.50 LBS
- MFG Part #:
- HN300300
$538.99Qty in Cart: 0Quantity:Price:$538.99Subtotal: -
Brinn Steel Drive Flange 73018
BRINN TRANSMISSION
$86.99The Brinn Steel Drive Flange 73018 is a precision crankshaft coupler engineered for reliable power transfer in high-performance Chevy V8 applications. If you're running a serious race engine or building a custom drivetrain, this steel flange provides the...BRI73018- SKU:
- BRI73018
- Availability:
- Ships Same Business Day
- Weight:
- 3.10 LBS
- MFG Part #:
- 73018
$86.99 -
Brinn Transmission Predator Series Aluminum 70600
BRINN TRANSMISSION
$2,904.99If you're building a dedicated race car or high-performance buggy, a purpose-built transmission is non-negotiable—and the Brinn Predator Series delivers the durability and efficiency needed for consistent power delivery across multiple heat cycles. The...BRI70600- SKU:
- BRI70600
- Availability:
- Ships Same Business Day
- Weight:
- 52.50 LBS
- MFG Part #:
- 70600
$2,904.99 -
Brinn Rebuild Kit Pro 2.0 70047
BRINN TRANSMISSION
$426.99A Brinn Pro 2.0 transmission demands quality rebuilds to maintain peak shift performance and reliability on the track or strip. This comprehensive rebuild kit supplies all critical wear items—clutch discs, bearings, bushings, and seals—so you can restore...BRI70047- SKU:
- BRI70047
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- MFG Part #:
- 70047
$426.99 -
Brinn Aluminum Transmission 70001
BRINN TRANSMISSION
$2,457.99For circle track racers who demand reliability without compromise, the Brinn Aluminum Transmission 70001 delivers lightweight performance with internal hydraulic actuation that eliminates external clutch assemblies entirely. The cryogenically treated...BRI70001- SKU:
- BRI70001
- Availability:
- Ships Same Business Day
- Weight:
- 57.70 LBS
- MFG Part #:
- 70001
- Transmission Speeds:
- 2-Speed
- Input Shaft Spline Count:
- 10
- Output Shaft Spline Count:
- 27
- Bellhousing Included:
- No
- Yoke Included:
- No
- Shifter Included:
- No
- Case Material:
- Aluminum
- Gear Ratio (Low):
- 1.88:1
- Gear Ratio (Reverse):
- 2.29:1
- Notes:
- 1-3/8"-10 spline input shaft. 1-3/16"-27 spline output shaft.
$2,457.99Qty in Cart: 0Quantity:Price:$2,457.99Subtotal: -
Bert Drive Flange Steel Chevy 7
BERT TRANSMISSIONS
$128.99A reliable drive flange is critical for transmitting engine power without slippage or failure, especially in high-performance applications where torque loads are extreme. The Bert Drive Flange Steel Chevy 7 delivers the precision coupling your Chevy V8...BER7- SKU:
- BER7
- Availability:
- Ships Same Business Day
- Weight:
- 1.69 LBS
- MFG Part #:
- 7
$128.99 -
Bert Steel Hub HTD 371-H
BERT TRANSMISSIONS
$136.99If you're running a Bert transmission in your Chevy V8 build, you need a crankshaft coupler that matches the precision and durability of your drivetrain—and the Bert Steel Hub HTD 371-H delivers exactly that. This CNC-engineered steel hub provides a...BER371-H- SKU:
- BER371-H
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MFG Part #:
- 371-H
$136.99 -
Bert New Style Flywheel Steel HTD 370-S-H-BOD-Kit
BERT TRANSMISSIONS
$214.99A lightweight flywheel is fundamental to reducing rotational mass and improving engine response—critical for both street performance and track applications. The Bert New Style HTD flywheel delivers the precision engineering and durability required for...BER370-S-H- SKU:
- BER370-S-H
- Availability:
- Ships Same Business Day
- Weight:
- 3.33 LBS
- MFG Part #:
- 370-S-H-BOD-Kit
$214.99Qty in Cart: 0Quantity:Price:$214.99Subtotal: -
Bert Flywheel Shim 324
BERT TRANSMISSIONS
$1.99Flywheel shim tolerances directly impact clutch engagement geometry and drivetrain harmonics—get this wrong, and you're fighting inconsistent bite points and premature wear. The Bert 324 shim provides the precise 0.038" thickness needed to dial in proper...BER324- SKU:
- BER324
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 324
$1.99 -
Bert Aluminum Transmission w/Z (Dog Teeth) LMZ
BERT TRANSMISSIONS
$2,369.99If you're running a dedicated drag racing or bracket racing platform, the Bert Aluminum Transmission with Z-pattern dog teeth delivers the straight-line performance you need without the weight penalty of cast-iron alternatives. The internal hydraulic...BER200- SKU:
- BER200
- Availability:
- Ships Same Business Day
- Weight:
- 50.00 LBS
- MFG Part #:
- LMZ
$2,369.99Qty in Cart: 0Quantity:Price:$2,369.99Subtotal: -
Allstar Performance Slip Yoke 8in ALL69046
ALLSTAR PERFORMANCE
$89.99A quality slip yoke is essential for maintaining proper driveshaft articulation and preventing bind-up during suspension travel—especially critical in high-performance and racing applications where drivetrain stress runs high. This Allstar Performance...ALL69046- SKU:
- ALL69046
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- MFG Part #:
- ALL69046
$89.99 -
Allstar Performance U-Joint 1350 Series ALL69032
ALLSTAR PERFORMANCE
$20.99A quality u-joint is fundamental to reliable driveline performance—this 1350 Series from Allstar delivers the durability and precision fit that racers and serious enthusiasts demand. Whether you're building a competition vehicle or maintaining a...ALL69032- SKU:
- ALL69032
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- MFG Part #:
- ALL69032
$20.99 -
Allstar Performance U-Joint 1330 Series ALL69031
ALLSTAR PERFORMANCE
$19.99A reliable u-joint is critical to maintaining smooth power delivery and preventing drivetrain vibration during acceleration and cornering. The Allstar Performance 1330 Series delivers the durability and precision fit that serious racers and performance...ALL69031- SKU:
- ALL69031
- Availability:
- Ships Same Business Day
- Weight:
- 1.32 LBS
- MFG Part #:
- ALL69031
$19.99 -
Allstar Performance U-Joint 1310 Series ALL69030
ALLSTAR PERFORMANCE
$17.99A quality u-joint is critical to reliable driveshaft operation—failure mid-race or on the road means a loss of power delivery and potential drivetrain damage. The Allstar Performance 1310 Series delivers the durability and precision fit that professional...ALL69030- SKU:
- ALL69030
- Availability:
- Ships Same Business Day
- Weight:
- 1.09 LBS
- MFG Part #:
- ALL69030
$17.99 -
Allstar Performance Driveshaft Loop 1/4in Flat Steel ALL69000
ALLSTAR PERFORMANCE
$39.99A driveshaft loop is essential safety equipment that catches a broken driveshaft and prevents it from digging into the track surface—a catastrophic failure that can end a run or cause serious damage. This Allstar Performance unit offers adjustable...ALL69000- SKU:
- ALL69000
- Availability:
- Ships Same Business Day
- Weight:
- 8.00 LBS
- MFG Part #:
- ALL69000
$39.99 -
Allstar Performance Bearing Kit Ford 9 3.062 Bearing ALL68512
ALLSTAR PERFORMANCE
$110.99A worn or improperly installed differential bearing setup will compromise your Ford 9-inch's reliability under load and kill your lap times. This Allstar Performance kit eliminates guesswork by bundling every critical component needed for a proper...ALL68512- SKU:
- ALL68512
- Availability:
- Ships Same Business Day
- Weight:
- 5.18 LBS
- MFG Part #:
- ALL68512
$110.99 -
Allstar Performance Bearing Kit Ford 9 2.893 Bearing ALL68511
ALLSTAR PERFORMANCE
$109.99A properly installed differential bearing kit is essential for maintaining consistent gear mesh, reducing backlash, and preventing premature wear in high-stress racing applications. This Allstar Performance kit provides everything needed for a complete...ALL68511- SKU:
- ALL68511
- Availability:
- Ships Same Business Day
- Weight:
- 5.15 LBS
- MFG Part #:
- ALL68511
$109.99
