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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Brinn Clutch Assembly Clip 70046
BRINN TRANSMISSION
$8.99The Brinn Clutch Assembly Clip 70046 is an essential service component for maintaining proper clutch engagement and security in high-performance transmissions. When wear or damage compromises your...BRI70046- SKU:
- BRI70046
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 70046
$8.99 -
Brinn Original Transmission Rebuild Kit 70041
BRINN TRANSMISSION
$324.99Transmission wear is inevitable in high-performance applications, but catastrophic failure doesn't have to be. The Brinn Original Transmission Rebuild Kit 70041 provides all the critical wear items...BRI70041- SKU:
- BRI70041
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MFG Part #:
- 70041
$324.99Qty in Cart: 0Quantity:Price:$324.99Subtotal: -
Brinn Magnesium Transmission 70010
BRINN TRANSMISSION
$3,154.99For serious drag racing and high-RPM applications, transmission weight directly impacts acceleration and weight transfer. The Brinn Magnesium Transmission 70010 delivers the lightweight construction...BRI70010- SKU:
- BRI70010
- Availability:
- Ships Same Business Day
- Weight:
- 52.15 LBS
- MFG Part #:
- 70010
$3,154.99 -
Bert Needle Roller Ball Spline SG-1504
BERT TRANSMISSIONS
$111.99The Bert Needle Roller Ball Spline SG-1504 is engineered to handle the extreme radial loads and rotational speeds found in high-performance racing transmissions. This bearing delivers the precision...BERSG-1504- SKU:
- BERSG-1504
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MFG Part #:
- SG-1504
$111.99 -
Bert Aluminum Transmission (GEN 2) Ball Spline SG-1500
BERT TRANSMISSIONS
$3,269.99If you're building a dedicated drag, bracket race, or road course machine, weight savings at the driveline are non-negotiable—and the Bert Aluminum Transmission (GEN 2) Ball Spline SG-1500 delivers...BERSG1500- SKU:
- BERSG1500
- Availability:
- Ships Same Business Day
- Weight:
- 46.25 LBS
- MFG Part #:
- SG-1500
$3,269.99 -
Bert Ball Bearing Deep Groove SG-1350
BERT TRANSMISSIONS
$34.99The Bert Ball Bearing Deep Groove SG-1350 is engineered to handle the precision demands of high-performance transmission systems, delivering smooth, reliable power transfer under extreme racing...BERSG-1350- SKU:
- BERSG-1350
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MFG Part #:
- SG-1350
$34.99 -
Bert 1 Lever Shifter SG-1310
BERT TRANSMISSIONS
$132.99A quality shifter is the critical interface between driver input and transmission response—and the Bert 1 Lever Shifter SG-1310 delivers the precision and reliability that separates consistent lap...BERSG1310- SKU:
- BERSG1310
- Availability:
- Ships Same Business Day
- Weight:
- 1.36 LBS
- MFG Part #:
- SG-1310
$132.99 -
Bert Aluminum Transmission (GEN 2) 19in Length SG-1300
BERT TRANSMISSIONS
$2,468.99If you're running circle track racing, weight reduction directly translates to faster acceleration, better handling, and quicker pit stops—three things that separate winners from the rest. The Bert...BERSG1300- SKU:
- BERSG1300
- Availability:
- Ships Same Business Day
- Weight:
- 42.35 LBS
- MFG Part #:
- SG-1300
$2,468.99 -
Bert Piston Return Spring SG-1078
BERT TRANSMISSIONS
$8.19A worn or failing piston return spring compromises shift quality and can lead to delayed engagement or transmission creep—problems that compound under racing conditions. The Bert SG-1078 is...BERSG-1078- SKU:
- BERSG-1078
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- SG-1078
$8.19 -
Bert Double Row Chain 3/8 SG-1076
BERT TRANSMISSIONS
$65.99If you're running a Bert Second Gen transmission, a worn or damaged chain will kill your power delivery and leave you stranded on the track or at the strip. The Bert Double Row Chain 3/8 SG-1076 is...BERSG-1076- SKU:
- BERSG-1076
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- MFG Part #:
- SG-1076
$65.99 -
Bert Needle Bearing 40x45x27 SG-1069
BERT TRANSMISSIONS
$16.49Needle bearing wear is one of the most common failure points in high-performance transmissions, leading to catastrophic gear slippage and loss of power delivery. The Bert SG-1069 is engineered to...BERSG-1069- SKU:
- BERSG-1069
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- SG-1069
$16.49 -
Bert Breather SG-1068
BERT TRANSMISSIONS
$6.49Transmission breathers prevent pressure buildup and moisture accumulation inside your gearbox, which directly extends transmission life and maintains consistent shift quality under sustained racing...BERSG-1068- SKU:
- BERSG-1068
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MFG Part #:
- SG-1068
$6.49 -
Bert Servo Bleeder SG-1065
BERT TRANSMISSIONS
$9.99Proper servo bleeding is critical for maintaining consistent shift quality and reliability in Bert second-generation transmissions. Air in the servo circuit compromises hydraulic response and can...BERSG-1065- SKU:
- BERSG-1065
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MFG Part #:
- SG-1065
$9.99 -
Bert Detent Ball 5/16in SG-1060
BERT TRANSMISSIONS
$1.99Detent balls are critical precision components in Bert manual transmissions, ensuring positive gear engagement and preventing unwanted gear slippage during hard acceleration or gear changes. A worn...BERSG-1060- SKU:
- BERSG-1060
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MFG Part #:
- SG-1060
$1.99 -
Bert Cage Needle Bearing SG-1058
BERT TRANSMISSIONS
$19.99Transmission bearing wear is one of the leading causes of premature gearbox failure in high-performance racing applications. The Bert Cage Needle Bearing SG-1058 delivers the radial load capacity and...BERSG-1058- SKU:
- BERSG-1058
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- SG-1058
$19.99 -
Bert Input Shaft Bearing SG-1053
BERT TRANSMISSIONS
$44.99The input shaft bearing is the critical load-bearing component that supports your transmission's input shaft under extreme rotational stress. A worn or damaged bearing leads to play in the shaft,...BERSG-1053- SKU:
- BERSG-1053
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- SG-1053
$44.99 -
Bert Bearing Carrier Thrust Support Bearing SG-1032-K
BERT TRANSMISSIONS
$74.99If you're running a Bert second-generation transmission in a high-performance application, the thrust support bearing is a critical component that directly impacts power delivery and transmission...BERSG-1032-K- SKU:
- BERSG-1032-K
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- SG-1032-K
$74.99 -
Bert Reverse Bearing SG-1031-K
BERT TRANSMISSIONS
$67.99Reverse bearing wear is one of the most overlooked failure points in high-performance transmissions, yet it's critical for reliable launches and consistent shifting under load. The Bert SG-1031-K is...BERSG-1031-K- SKU:
- BERSG-1031-K
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- SG-1031-K
$67.99 -
Bert Band 2nd Generation SG-1030-K
BERT TRANSMISSIONS
$231.99Transmission flex bands are critical wear items in high-performance Bert transmissions—when yours begins to slip or chatter, power transfer suffers and shift quality degrades. The Bert Band 2nd...BERSG-1030-K- SKU:
- BERSG-1030-K
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- MFG Part #:
- SG-1030-K
$231.99 -
Bert Reverse Gear SG-1029
BERT TRANSMISSIONS
$159.99A worn or damaged reverse gear compromises both safety and transmission reliability, especially in high-performance or racing applications where gear engagement is critical. The Bert Reverse Gear...BERSG-1029- SKU:
- BERSG-1029
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- MFG Part #:
- SG-1029
$159.99
